Question

solve this i will mark u brainliest​

Answer 1

$- 2a ^{2} + 2b {}^{2}$

Answer 2

Answer:

=(b+a)(b-a)-(a + b)(a-b)

Multply

b square - ba +ab- a2-a2-ab + ba + b2

- 2a square +2 b Square

= - 2 ( a square-b Square