作业帮(x+3y)/(x^2+xy)-x+y计算题
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(x+3y)/(x^2+xy)-x+y计算题
(x+3y)/(x^2+xy)-x+y计算题
(x+3y)/(x^2+xy)-x+y计算题
(x+3y)/(x^2+xy)-x+y计算题
x+3y)/(x^2+xy)-x+y
=[(x+3y)-x(x^2+xy)+y(x^2+xy)]/(x^2+xy)
=(x+3y-x^3-x^2y+x^2y+xy^2)/(x^2+xy)
=(x+3y-x^3+xy^2)/(x^2+xy)
(x+3y)/(x^2+xy)-x+y
=[(x+3y)-x(x²+xy)+y(x²+xy)]/(x²+xy)
=(x+3y-x³-x²y+x²y+xy²)/(x²+xy)
=(x+3y-x³+xy²)/(x²+xy)
？？？计算题还是化简题？？？
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