Question

When x = - 1 , what is tha value of tha polynomial 2³x + 2x​

Answer 1

Answer:

-10

Step-by-step explanation:

(23)(x)+2x

Evaluate for x=−1

(23)(−1)+(2)(−1)

=−10

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Answer 2

Answer:

1 is he answer

Step-by-step explanation:

x  

2

−1=(x+1)(x−1)

x  

2

−2x+1=x  

2

−x−x+1=x(x−1)−1(x−1)=(x−1)  

2

 

Value of both polynomials become zero, when x=1.