Question

Q.5 When x=-1, what is the value of polynomial 2x³ + 2x?​

Answer 1

Answer:

When x = -1,

2(1)³ + 2(1) = 2 + 2 = 4

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Answer 2

Step-by-step explanation:

2x^3+0x^2+2x

2(-1)^3+0(-1)^2+2(-1)

-2+0-2

-4