find the value for K for which -4 is a zero of the polynomial (x)square -x -(2 K+2) is
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putting x = -4
(-4)^2 - (-4) - (2k+2)=0
16+4-2k -2 = 0
18-2k = 0
-2k = -18
k = 9
(-4)^2 - (-4) - (2k+2)=0
16+4-2k -2 = 0
18-2k = 0
-2k = -18
k = 9
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