Question

(а-4)(а+4)-(а-2)²=
(х-5)(х+5)-(х+10)(х-10)=
(p²+3q)²+(p²+3q)(p²-3q)=
(2b³-c²)²+(2b³+c²)(2b³-c²)=
помогите пж!!!​

Answer 1

Ответ:

1-1а+2²

2-0

3-0

4-2аb³-c²