Question

Упростите выражения (3-у2)(у-4) а2+(2-а)(а+5) (n-1)(n2+n-2)

Answer 1

1)3y-12-y^3+4y^2;
2) a^2+2a+10-a^2-5a=10-3a;
3) n^3+n^2-2n-n^2-n+2=n^3-3n+2;