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If ‘4’ is one of the zeroes of p(x) = x2 + kx – 8, then the value of k = ……………… A) 1 B) -1 C) 2 D) -2 |
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Answer» Correct option is (D) -2 p(4) = 0 \(\Rightarrow\) \(4^2+4k-8=0\) \(\Rightarrow4k=8-4^2\) = 8 - 16 = -8 \(\Rightarrow\) \(k=\frac{-8}4=-2\) Correct option is D) -2 |
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