Question

Find the value of k if 2 is a zero of the polynomial 2x^3-5x^2-5x-k

Answer 1

Sub. 2 in place of x to get k.
2(2)^3-5(2)^2-5(2)-k=0
16-20-10-k=0
-14-k=0
k=-14

Answer 2

Here is your answer

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