Question

-Зх2(2х3-5х+7)=
8) (а +3)(a – 7) =
9) ( 8 – 3х)( 2x + 1) =
10) (а + 2)( а 2 – а – 3) =​

Answer 1

1) -6(6-5х-7)
-6(-1-5х)
6+30х
8)Х^2-4х-21
9)-6Х^2+13х+8
10) х^3+х^2-5х-6