(1)3xy×(-4xy+2xy-1)(2)(x+2y)(3x-2y)+(x-2y)(3x+2y)因式分解
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(1)3xy-4xy-(-2xy)
3xy-4xy-(-2xy)
3xy-4xy-(-2xy)
(-3xy+2xy)-(4xy+xy)
计算:3xy-4xy-(-2xy)3xy-4xy-(-2xy)-1/3ab-1/4a²+1/3a²-(-2/3ab)
[(xy-2)2次方-(-xy-1)(xy-4)]除(-3分之1xy)
化简 2(xy-xy²+3)-(-4xy²+xy-1) 其中,x等于--4,y等于-3
【(2+xy)(xy-2)-xy(xy+1)+4】/(-2xy) 一道计算题!
计算(-1/2xy²)²(3xy-4xy²+1)
(-4xy^3)×(-xy)+(-3xy^2)^2
1/2xy(2/3xy²-2xy)
2xy(5xy的2次方+3xy-1)
2xy(5xy的2次方+3xy-1)
计算:3xy-4xy-(-2xy)要过程
已知(x+1)*(x+1)=-Iy-1I,求2(xy-(5xy)*(5xy))-3((xy)*(xy)-xy)
-3xy平方(-2xy+3yz-1)
(6-2xy)(2-6xy)=4(3-xy)(1-3xy)如题,(6-2xy)(2-6xy)怎样化到4(3-xy)(1-3xy)?
5xy^2-{2x^y-[3xy^2-(xy^2-2x^2y)]/(-1/2xy)}