Answers

2016-08-03T11:46:10+08:00
X-y=3.........,,,,1. x(y)=88; x=88/y.....2 1/2 88/y -y=3; 88-y^2=3y; y^2+3y- 88=0; (y-8)(y+11)=0; y=8....ans
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