Question

I will mark as brain list
Hi tell me answer of this question
Which identity is correct
And also tell why other identities are wrong

Answer 1

Answer:

1st one is wrong the correct ans is (a+b)^2-2ab

4th is wrong the correct ans is a^2-2ab+b^2

Step-by-step explanation:

Answer 2

Hey , your right identity is,
(3) a+b= a2-b2/a-b.

others identities are wrong because their factorize form is not correct.... so,

I hope it may be.....

"mark it as brilliant"***