Question

If x+y:10 and x-y:4, find the value of x^2-x^2 the answer should 40

Answer 1

Here is your Answer...

Given- x+y=10, x-y=4

We have to find the value of x^2-y^2.

We know x^2-y^2=(x+y)(x-y)=10x4=40

[ALGEBRAIC IDENTITY]..

Hope you will Understand...

Thank you...