find the value of k if (x+2) is a factor of p(x)= x³+6x²+4x+k
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Answer:
k = -8
Step-by-step explanation:
x + 2 = 0
x = -2
Put p(x) as p(-2)
p(x)= x³+6x²+4x+k
p(-2)= (-2)³+6(-2)²+4(-2)+k = 0
-8 + 24 - 8 + k = 0
8 + k = 0
k = -8
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