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If x = -2 and `x^(2) + y^(2) + 3xy = -5` , then find y .A. `-2`B. 3C. `-4`D. 9 |
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Answer» Correct Answer - B Value of `x^(2) + y^(2) + 3xy = -5 ` and x = -2 `implies (-2)^(2) + y^(2) - 6y = -5` `implies y^(2) - 6y + 9 = 0` `implies (y - 3)^(2) = 0` `implies y - 3 = 0` `implies y = 3` Hence , the correct option is (b) . |
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