Question

7)
-
-a square minus b square ​

Answer 1

Answer:

Step-by-step explanation:

a^2 -b^2 = (a-b)(a+b)

Answer 2

Answer:(a+b)(a-b)

Step-by-step explanation:

We know the formula a^2-b^2=(a+b)(a-b) Let us prove it...

RHS. (a+b)(a-b)

a^2-ab+ab-b^2

=a^2-b^2