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Home /Doubts and Solutions/CBSE/Class 9/Mathematics/Polynomials/Algebraic Identities Quadratic

Algebraic Identities Quadratic Free Doubts and Solutions

CBSE - IX - Mathematics - Polynomials

s i m p l f y space t h e space f o l l w i n g space space e x p r e s s i o n s colon negative comma space open parentheses x plus y plus z close parentheses squared plus open parentheses x plus y minus z close parentheses squared space a n d space open parentheses 2 x plus p minus c close parentheses squared minus open parentheses 2 x minus p plus c close parentheses squared

Asked by kishor.kp14 26th June 2019, 4:20 PM
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CBSE - IX - Mathematics - Polynomials

f a c t o r i s e colon space 3 a cubed b minus 243 a b cubed comma space x to the power of 4 minus 625 comma space a cubed b cubed plus a plus b comma space x open parentheses x minus y close parentheses cubed plus 3 x squared y open parentheses x minus y close parentheses comma 2 x squared minus 3 x squared minus 17 x plus 30 comma space 24 square root of 3 x cubed minus 125 y cubed comma a to the power of 7 minus a b to the power of 6

Asked by kishor.kp14 26th June 2019, 4:05 PM
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CBSE - IX - Mathematics - Polynomials

f i n d space t h e space v a l u e space o f space 249 squared minus 248 squared space a n d space a l s o space f a c t o r i s e space open parentheses 25 x squared minus 1 close parentheses plus open parentheses 1 plus 5 x close parentheses squared

Asked by kishor.kp14 26th June 2019, 3:49 PM
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CBSE - IX - Mathematics - Polynomials

S i m p l i f y colon
square root of 2 a to the power of 2 to the power of blank end exponent plus 2 square root of 6 space end root a b plus 3 b to the power of 2. end exponent end root

Asked by kishor.kp14 19th June 2019, 9:52 AM
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CBSE - IX - Mathematics - Polynomials

I f space square root of u plus square root of v minus square root of w equals 0 comma space f i n d space t h e space v a l u e space o f left parenthesis u plus v minus w right parenthesis.

Asked by kishor.kp14 19th June 2019, 9:41 AM
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CBSE - IX - Mathematics - Polynomials

factorise x4+5x2+9 by identity a2-b2=(a+b)(a-b). here 4,2 are the powers of this expression.

Asked by shubham0kumar24 30th May 2019, 11:01 AM
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CBSE - IX - Mathematics - Polynomials

a²-b²+2bc-c²

Asked by saayuahi670 23rd May 2019, 11:14 AM
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CBSE - IX - Mathematics - Polynomials

If a=1+√2+√3 and b=1+√2-√3 find a square +b square -2a-2b

Asked by Payalagrawal78 10th May 2019, 8:18 AM
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CBSE - IX - Mathematics - Polynomials

x+a * x+b

Asked by yeshuajoji 3rd August 2018, 9:44 PM
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CBSE - IX - Mathematics - Polynomials

space space H o w space t o space d e r i v e space space t h e space f o r m u l a space open parentheses a plus b close parentheses squared left parenthesis a minus b right parenthesis squared equals 4 a b

Asked by agraharianiruddha 18th June 2018, 10:35 AM
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CBSE - IX - Mathematics - Polynomials

Factorise: x^2+1/x^2+2-2x-2/x

Asked by aahnik.mohanty 25th December 2017, 9:54 AM
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CBSE - IX - Mathematics - Polynomials

x=3+√3
find x^2+9/x^2

Asked by aahnik.mohanty 26th November 2017, 8:35 PM
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CBSE - IX - Mathematics - Polynomials

What should be added from 16x2 + 40x + 1 to make it a perfect square?

Asked by Topperlearning User 7th August 2017, 3:15 PM
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CBSE - IX - Mathematics - Polynomials

Asked by Topperlearning User 7th August 2017, 3:14 PM
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CBSE - IX - Mathematics - Polynomials

If p = 2 -a, prove that a3 + 6ap + p3 - 8 = 0

Asked by Topperlearning User 7th August 2017, 3:13 PM
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CBSE - IX - Mathematics - Polynomials

Factorise x2 -1 -2a - a2

Asked by Topperlearning User 7th August 2017, 3:13 PM
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CBSE - IX - Mathematics - Polynomials

Expand: (2x + y + 3z)2

Asked by Topperlearning User 7th August 2017, 3:06 PM
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CBSE - IX - Mathematics - Polynomials

Factorise: b2 + c2 + 2 (ab + bc + ca)

Asked by Topperlearning User 7th August 2017, 3:06 PM
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CBSE - IX - Mathematics - Polynomials

Expand (i) (2x + y + 3z)2 (ii) (3a - 2b + 2c)2

Asked by Topperlearning User 7th August 2017, 3:02 PM
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CBSE - IX - Mathematics - Polynomials

Without calculating the square of any number , calculate the value of the following: 497 503

Asked by Topperlearning User 7th August 2017, 2:55 PM
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CBSE - IX - Mathematics - Polynomials

Asked by Topperlearning User 7th August 2017, 2:55 PM
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CBSE - IX - Mathematics - Polynomials

Find the square of:(i) 3x + 4y(ii) 2a + 5b

Asked by Topperlearning User 7th August 2017, 2:54 PM
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CBSE - IX - Mathematics - Polynomials

Simplify: (x2 + y2)2 + 2(x2 + y2) (x2 - y2 )+ (x2 - y2)2

Asked by Topperlearning User 7th August 2017, 2:54 PM
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CBSE - IX - Mathematics - Polynomials

Find the value of

Asked by Topperlearning User 7th August 2017, 2:53 PM
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CBSE - IX - Mathematics - Polynomials

Evaluate (6p - 7q)2

Asked by Topperlearning User 7th August 2017, 2:53 PM
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CBSE - IX - Mathematics - Polynomials

If x = √3 + 2√2 and y = √3 - 2√2 then the value of x4 + y4 + 6 x2y2 is

(A)    584

(B)     682

(C)     798

(D)     245

Asked by gpnkumar0 29th March 2017, 5:22 PM
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CBSE - IX - Mathematics - Polynomials

If one zero of the polynomial (a^2 + 9)x^2 + 13x + 6a is reciprocal of the other , find the value of 'a'

Asked by Abhijeet 26th September 2016, 6:45 PM
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CBSE - IX - Mathematics - Polynomials

If a,b,c are real and a^2 + b^2 + c^2= 2(a-b-c)-3 the value of 2a -3b+4c is what??

Asked by sreyaonline 27th May 2016, 12:59 PM
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CBSE - IX - Mathematics - Polynomials

If a, b, c are distinct real numbers such that a squared space minus space b space equals space b squared space minus space c space equals space c squared space minus space a space t h e n comma space f i n d space left parenthesis a space plus b right parenthesis left parenthesis b plus c right parenthesis left parenthesis c plus a right parenthesis

Asked by a.behera67 4th January 2016, 9:07 PM
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CBSE - IX - Mathematics - Polynomials

If x+y+z = 0, find fraction numerator x squared y squared space plus space y squared z squared space plus space z squared x squared over denominator x to the power of 4 space plus space y to the power of 4 space end exponent plus space z to the power of 4 end fraction

Asked by a.behera67 5th November 2015, 8:02 PM
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CBSE - IX - Mathematics - Polynomials

plz solve the following problems....

Asked by jeffladebo 1st October 2015, 11:15 PM
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CBSE - IX - Mathematics - Polynomials

5+√11
______    =x+y√11
 
5-√11

Asked by himanshu 20th September 2015, 9:34 PM
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CBSE - IX - Mathematics - Polynomials

if  open parentheses x plus 2 close parentheses squared equals space x squared plus open parentheses x minus 2 close parentheses squared then find x

Asked by badesraajay 8th September 2015, 9:45 PM
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CBSE - IX - Mathematics - Polynomials

t h e space r o o t s space o f space x subscript blank superscript 2 minus 2 x minus left parenthesis r subscript blank superscript 2 minus 1 right parenthesisequals 0 space

Asked by abhijeetkhachane 21st January 2015, 10:17 PM
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CBSE - IX - Mathematics - Polynomials

Factorize 9x2 + y2 + z2 - 6xy + 2yz - 6zx. Hence find its value if x = 1, y = 2 and z = -1.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

Simplify (x + y + z)2 - (x + y - z)2.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

Factorize: a12y4 - a4y12.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

If a = and b = , find a2 -b2.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

If x = 1 - , find value of .

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

Factorize: x2 + x + 6.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

Expand the following: (i) (x-2y-3z)2. (ii) (y-)2.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

Factorize: .

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

If a+b+c=9 and ab+bc+ca=40. Find the value

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

If a2 + b2 + c2 = 90 and a + b + c = 20 then find the value of ab + bc + ca.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

Find the product of .

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

If a2 + b2 + c2 = 30 and a + b + c = 10 then find the value of ab + bc + ca.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

Simplify: .

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Polynomials

Factorize:(a) 4a2 -9b2 -2a -3b (b) a2 + b2 -2(ab -ac + bc)

Asked by Topperlearning User 14th February 2014, 3:54 PM
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