find the value of k if x+k is a factor of x³ + kx² - 2x + k+5
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Answered by
3
Answer:
k = -5 / 3
Step-by-step explanation:
The explanation is in the above attachment.
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Answered by
2
Step-by-step explanation:
given x+k=0
x=-k
now put in equation
x³ + kx² - 2x + k+5
(-k)³ + k(-k)² - 2(-k)+ k+5=0
-k³ +k³ + 2k+ k+5=0
3k+5=0
k=-5/3
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