Question

When X=-1, What is the value of the polynomial 2X³+2X ?​

Answer 1

Answer:

-4

Step-by-step explanation:

x=-1

2x³+2x

=2(-1)³+2(-1)

=-2+(-2)

=-2-2

=-4

Answer 2

Answer:

Answer is -4

Step-by-step explanation:

Let the given polynomial p(x)

it is given that ,

p(x) = 2X³+2X

substitute x = -1 in p(x), we get

p(-1) = 2(-1)³ + 2(-1)

= -2-2

= -4

Therefore,

if x = -1 then answer will be -4