помогите пожалуйста даю100 ​

1) (p)(p-2) - 6(p-2) +2p(p-2) = (3p-6) (p-2) = 3(p-2)p-2 = 3

2) (10a (a+2) - 10a (a-2)) (a-2)(a+2) = (10a²+20a-10a²+20a)(a+2)(a-2)=40aa²-4

3) (x(x+1)+x(1-x))x²-1=(x²+x+x²-x)x²-1 = (2x²)x²-1

4) (m+m²+1-m²)(1+m²)(1+m) = (m+1)(1+m²)(1+m) = 11+m²