Question

Find the value of K if (x+2)is a factor of 3x²+kx+6

Answer 1

x+2=0
x=-2


3xsquare+kx+6
3(-2)square+k(-2)+6
3*4-2k+6
12-2k+6=0
-2k+6=-12
-2k=-12-6
-2k=-18
k=-18/-2
k=9 hence proved


mark me braimly plz

Answer 2

k=9

is your answer
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