1.

If x = -2 and `x^(2) + y^(2) + 3xy = -5` , then find y .A. `-2`B. 3C. `-4`D. 9

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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