Question

when x= -1 what is the value of polynomial 2x3 + 2x? ​

Answer 1

Let p(x)= 2x³+2x = 2x(x²+1)

Now p(-1)= 2(-1)[(-1)²+1] = -2(2) = -4

Answer 2

Answer:

The answer is -4.

Step-by-step explanation:

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