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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

Asked by kishor.kp14 26th June 2019, 4:20 PM

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### CBSE - IX - Mathematics - Polynomials

Asked by kishor.kp14 26th June 2019, 4:05 PM

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### CBSE - IX - Mathematics - Polynomials

Asked by kishor.kp14 26th June 2019, 3:49 PM

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### CBSE - IX - Mathematics - Polynomials

Asked by kishor.kp14 19th June 2019, 9:52 AM

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### CBSE - IX - Mathematics - Polynomials

Asked by kishor.kp14 19th June 2019, 9:41 AM

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## 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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## a²-b²+2bc-c²

Asked by saayuahi670 23rd May 2019, 11:14 AM

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## 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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## x+a * x+b

Asked by yeshuajoji 3rd August 2018, 9:44 PM

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### CBSE - IX - Mathematics - Polynomials

Asked by agraharianiruddha 18th June 2018, 10:35 AM

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

Asked by aahnik.mohanty 25th December 2017, 9:54 AM

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## x=3+√3 find x^2+9/x^2

Asked by aahnik.mohanty 26th November 2017, 8:35 PM

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## 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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## 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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## Factorise x2 -1 -2a - a2

Asked by Topperlearning User 7th August 2017, 3:13 PM

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

Asked by Topperlearning User 7th August 2017, 3:06 PM

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

Asked by Topperlearning User 7th August 2017, 3:06 PM

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

Asked by Topperlearning User 7th August 2017, 2:54 PM

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## 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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## Find the value of

Asked by Topperlearning User 7th August 2017, 2:53 PM

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## Evaluate (6p - 7q)2

Asked by Topperlearning User 7th August 2017, 2:53 PM

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## 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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## 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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## the question is find the sum of first 15 multiples of 8 (a.p of 10th std). my doubt is that why can't we take 0 as a multiple of 8 so if that is the the first term will be 0 and when i solve it i don't get the ans write because they have taken the first multiple as 8 not 0 .but why?

Asked by Soujanya 1st June 2016, 5:54 PM

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## 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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## If a, b, c are distinct real numbers such that

Asked by a.behera67 4th January 2016, 9:07 PM

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## If x+y+z = 0, find

Asked by a.behera67 5th November 2015, 8:02 PM

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## 5+√11 ______    =x+y√11   5-√11

Asked by himanshu 20th September 2015, 9:34 PM

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## if   then find x

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### CBSE - IX - Mathematics - Polynomials

Asked by abhijeetkhachane 21st January 2015, 10:17 PM

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

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## Factorize: a12y4 - a4y12.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## If x = 1 - , find value of .

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## Factorize: x2 + x + 6.

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## 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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## Factorize: .

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## 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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## 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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## Find the product of .

Asked by Topperlearning User 4th June 2014, 1:23 PM

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## 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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## Simplify: .

Asked by Topperlearning User 4th June 2014, 1:23 PM

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

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