Question

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

Answer 1

Answer:-4

Step-by-step explanation:

= 2 * -1 * -1* -1+ 2* -1

= -2 + -2

= -4

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Answer 2

Answer:

-4

Step-by-step explanation:

x= -1

p(x) = 2x^3 + 2x

p(-1) = (2)( -1* -1* -1)   +  ( 2* -1)

  =  -2 + (-2)

  =  -2-2

  = -4

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