Question

when x=-2 what is the value of the polynomial 2x3+2x​

Answer 1

Answer:

2×3+2×-2

(6)+ (-4)

-2 is your answer mate ....

Answer 2

Answer:

$\: \huge \underline{ \sf{ \red{Given}}}$

Polynomial is 2x³+2x, x=-2

Solution:-

2x³+2x

2(-2) ³+2(-2)

2(-8) +(-4)

-16-4

-20