Question

If x=3 is a zero of the polynomial 2x^2+kx-12, find the value of k.​

Answer 1

Answer:

k=-8

Step-by-step explanation:

2×9×2+k×3-12=0

or,36+3k-12=0

or,24+3k=0

or,3k=-24

or,k=-24/3

or,k=-8

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