Question

Find the value of the polynomial 2x cube +2x when x=-1

Answer 1

i hope this helps you

Answer 2

The value of the given expression at x = -1 is -4

Step-by-step explanation:

The given polynomial is

$2x^3+2x$

Substituting x = -1 in this expression

$2(-1)^3+2\cdot(-1)$

Simplify this expression to find the value

$2\cdot(-1)-2\\\\=-2-2\\\\=-4$

Therefore, the value of the given expression at x = -1 is -4

#Learn More:

x/x-a +x/x-b =2 ,find x

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