Question

2-x(9+x^2) for x= -2

Answer 1

just subtitute -2 in every place that has x and just solve

Answer 2

Sub in x=-2.

2-x(9+x^2)
=2-(-2)[9+(-2)^2]

Answer 3

u can solve the expression first and then substitute -2 for all x's

Answer 4

2-9(-2)-(-2)^3
=28