Question

If x= -2 is a root of kx² + x - 6 = 0, find k. ​

Answer 1

x = -2

p(x) = kx^2 + x - 6

Thus k(-2)^2 + (-2) - 6 = 0

4k - 8 = 0

k = 8/4

k= 2

     

Answer 2

Answer:

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Step-by-step explanation:

k(-2)²+(-2)-6=0

4k-2-6=0

4k-8=0

4k=8

k=8/4

k=2