Question

for what value of k is (x +2 ) a factor of 4x⁴ +2x³-3x²

Answer 1

The answer is k=−11

Explanation:

Let f(x)=x3−6x2+kx+10

If (x+2) is a factor

Then,

f(−2)=0

f(−2)=−8−24−2k+10=0

2k=−22

k=−11

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