Question

help any one pls pls

Answer 1

(b^2 - a^2) - (a^2 - b^2)

= b^2 - a^2 - a^2 + b^2

= 2b^2 - 2a^2

= 2(b^2 - a^2)

Answer 2

here is your answer mate:)

(b^2 - a^2) - (a^2 - b^2)

b^2-a^2-a^2+b^2
2b^2-2a^2

2(b^2-a^2)