Solving systems
- Thread starter StoreyM
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- Apr 12, 2005
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xy+y+x=11
x^2(y)+y^2(x)=30
Have you cinsidered factoring to the best of your ability?
y(x+1) + x = 11
xy(x+y) = 30
Tinker with it a little: x + y = 11 - xy, so that xy(11-xy) = 30. There's a relatively simple quadratic in xy.
You could just solve one for something: y = (11-x)/(x+1) and see where it leads.
Exploration!!! That's why it's extra credit.
x^2(y)+y^2(x)=30
Have you cinsidered factoring to the best of your ability?
y(x+1) + x = 11
xy(x+y) = 30
Tinker with it a little: x + y = 11 - xy, so that xy(11-xy) = 30. There's a relatively simple quadratic in xy.
You could just solve one for something: y = (11-x)/(x+1) and see where it leads.
Exploration!!! That's why it's extra credit.