Verified Answer :

Answer:

Find the Derivative check the signs and figure it out

Derivative of the function is

8x+8

therefore now solve for x

which gives x = -1

now make a number line

and put the values of x smaller than -1 and bigger than -1

so if we put 0 we get positive 8

and of we put negative 2 we get = -8

so it goes from negative to positive which means its has a minimum point as the functions slope became negative to positive.

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