Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 10 Answered

Is(x-3)(x+3)=40?why?How to solve it
Asked by | 24 Nov, 2011, 07:26: PM
answered-by-expert Expert Answer
This is a quadratic equation. It can be anything on the left hand side
or the right hand side. Its solution is given as follows
 
x2-9 = 40
 
or x2=49
 
or x = ±7
 
this is the answer
Answered by | 24 Nov, 2011, 08:48: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
ICSE 10 - Maths
3√2x×x-5x-√2
question image
Asked by ashwanikaler9 | 11 Apr, 2024, 01:50: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
4(x−1/x)^2 - 8(x+1/x)=29, x≠0.
question image
Asked by san.dhole121409 | 30 Jan, 2024, 09:32: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
(x+1)(2x+8)=(x-7)(x+3)
Asked by ajaykumarnaryal75 | 28 May, 2023, 01:52: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
(a+b)²x²-(a+b)x-6=0;(a+b)≠0 Take: (a+b)x=y  
Asked by adityasambangi08 | 19 May, 2023, 05:04: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
8/x+3-3/2-x=2
Asked by mohitmore008 | 31 Jul, 2022, 11:42: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
Two squares have sides x cm and (x+5)cm .The sum of their areas is 697 sq.cm.-thanks (i)Express this as an algebraic equation in x. (ii)Solve this equation to find the sides of the squares.
Asked by rashikulkarni28 | 21 Jul, 2022, 08:36: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
When do we use nature of the roots formula in quadratic  equations word problem?-thanks
Asked by rashikulkarni28 | 18 Jul, 2022, 10:54: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
8x^2+(m+5)x + (m-1) =0
Asked by mohitmore008 | 30 Jun, 2022, 08:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
9/2x=5+x square
Asked by sefalikumari.yadav | 22 Jun, 2022, 05:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 10 - Maths
2x4 - 5x2+3=0
Asked by sushenmahato74 | 20 Jun, 2022, 07:43: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×