T T S New member Jul 11, 2010 #1 x^2+2xy=18 5x^2-xy=2 How do I solve this? So far, I have y = (-x^2+18)/2x 5x^2+(x^3-18x)/2x=5 10x^3+x^3-18x=10x 11x^3-28x=0 x(11x^2-28)=0 x=0 x=Square Root 28/11 What am I doing wrong?
x^2+2xy=18 5x^2-xy=2 How do I solve this? So far, I have y = (-x^2+18)/2x 5x^2+(x^3-18x)/2x=5 10x^3+x^3-18x=10x 11x^3-28x=0 x(11x^2-28)=0 x=0 x=Square Root 28/11 What am I doing wrong?
