Question

X³-3x²+6x-5
find the value of this expression when x= -2

Answer 1

Answer:

-21

Step-by-step explanation:

-2³-3(-2)²+6(-2)-5

-21

Answer 2

Answer:   -31

Step-by-step explanation:

substitute -2 in place of x

first lets do it

(-2)^3-3*(-2)^2+6*(-2)-5

-8-3*2-12-5

-8-6-12-5

-31