Question

-a(a² + 2a-1) for a = 2
pls help me solve this

Answer 1

-9

Explanation:

-2(2x2+2(2)-1)

-2 x 4= -8

since the sign outside the bracket is negative, the positive sign will change to negative.

So we have -8-2(2)-1

-8-3

=-9