Question

Хееееееелп СРОЧНО!!!!! ​

Answer 1

a) (a-b)(a+b)-4(a+b)=(a+b)(a-b-4)

б) 2(x+y)-(x+y)^2=(x+y)(2-x-y)

Answer 2

1 . (a-b)×(a-b-4)

abo

(a-b)×(a+b)-4b-4a