for what value of k polynomial x³+kx+2k-2 has -1as its zero?
Answers
Answered by
6
Answer:
k = 3
Step-by-step explanation:
x³ + kx + 2k - 2 = 0, if x = -1 [Given that -1 is the zero]
=> (-1)³ + k(-1) + 2k - 2 = 0
=> -1 - k + 2k - 2 = 0
=> -3 + k = 0
=> k = 3
Answered by
2
Answer:
yo
Step-by-step explanation:
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