=[(xy-1)-(1-xy)]/3
=2xy/3
话说这问题为啥会分类在极品飞车里……
[x﹙x²y²-xy)-y(x²-x³y﹚]÷3x²y
1个回答
相关问题
-
（x√x+x√y)÷(xy-y^2)--(x+√xy+y)÷(x√x-y√y)
-
[x(x²y²-xy)-y(x²-x³y)]÷3x²y
-
【x(x²y²-xy)-y(x²-x³y)】÷3x²y
-
[x(x²y-xy)-y(x²-x³y)]÷3x²y
-
(x²y³+xy)(x²y³-xy)÷x²y³,其中x=3,
-
[x(x²y²-xy)-2y(x²-x³y)÷3x²y
-
计算 ①[x(x²y²-xy)-y(x²-x³y)]÷3x²y
-
x*（9x^3y-3xy^2）÷（-3x^2y）= 【（x+y）^2-（x-y）^2】÷（-4xy）=
-
（xy-x²）÷[（x²-2xy+y²）÷xy]*[(x-y)÷x²]
-
已知x÷y=3,则x²+2xy－3y²÷(x²－xy+y²)=?