Question

when x=-1 what is the value of polynomial 2xcube+2x

Answer 1

2x^3+2x
2(-1)^3+2(-1)
-2-2
-4

Answer 2

hi there

here's your answer

$2 {x}^{3} + 2x$

Replacing X by -1...

2 (-1) ^3 + 2 (-2)
= 2 × -1 + (-2)
= -2 - 2
= - 4

MARK AS BRAINLIEST