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If one of the roots of the quadratic equation x2 + x + k = 0 is – 2, then what is the value of k ? (A) 2 (B) – 2 (C) – 3 (D) 0 |
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Answer» The correct option (B) – 2 Explanation. If – 2 is a root of this equation then (– 2)2 + (– 2) + k = 0 4 – 2 + k = 0 k = – 2 |
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