Question

Find the value of k if x-2 is a factor of x^ 2+ kx +2k.

Answer 1

x=2 You have to put its value in equation given


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Answer 2

x-2=0
x=2

x^2+kx+2k =0
(2)^2+k×2+2k = 0
4+2k+2k = 0
4+4k = 0
4k=-4
k=-4/4
k=-1