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POLMNOMTALS02/59Q. 25. If x and y be two positive real numbers such that 8 x, 27 y3730 and 2 x2y + 3,2= 15, evaluat2x +3 y. |
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Answer» 8x^3 + 27y^3 = 730 and 2x^2y + 3xy^2 = 15 then evaluate 2x + 3y(2x + 3y)^3 = 8x^3 + 27y^3 + 18 x 2x^2y + 18 x 3xy^2(2x + 3y)^3 = 730 + 18 (15 ) = 730 + 270 = 1000(2x + 3y)3 = 10^32x + 3y = 10 |
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