Question

If x=-2 is a zero of the polynomial 2x2 + kx-12, then find the
value of k.
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Answer 1

Answer:

put x= -2 in the equation

Step-by-step explanation:

2*(-2)^2 +k(-2)-12=0

12+2k=8

4=(-2)k

k=(-2)

Answer 2

Answer:

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