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जनटर %Xy 3106 (XL—I-33) 5 |
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Answer» (x + 3)/(x-3) + 6(x-3)/(x+3) = 5 Let (x+3)/(x-3) = y y + 6/y = 5 y^2 + 6 = 5y y^2 - 5y + 6 = 0 y^2 - 3y - 2y + 6 = 0 y(y - 3) - 2(y - 3) = 0 (y - 2)(y - 3) = 0 y = 2, 3 For y = 2x + 3/x - 3 = 2x + 3 = 2x - 6x = 9 For y = 3x + 3/x - 3 = 3x + 3 = 3x - 92x = 12x = 12/2 = 6 |
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