FIND K IF (X +2 ) IS A FACTOR OF ( 2x^2 + KX + 10 ) BY FACTOR THEOREM
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Answer:
k = 9
Step-by-step explanation:
x = -2
f(x) = 2x²+kx+10
f(-2) = 2×(-2)²+k×(-2)+10 = 0
= 8-2k+10 =0
= 18-2k =0
= -2k = -18
= k = -18/-2
= k = 9
Hope it helps you...
Thank you....
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