计算:3xy-4xy-(-2xy)3xy-4xy-(-2xy)-1/3ab-1/4a²+1/3a²-(-2/3ab)
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计算:3xy-4xy-(-2xy)3xy-4xy-(-2xy)-1/3ab-1/4a²+1/3a²-(-2/3ab)计算:3xy-4xy-(-2xy)3xy-4xy-(-2xy)-
计算:3xy-4xy-(-2xy)3xy-4xy-(-2xy)-1/3ab-1/4a²+1/3a²-(-2/3ab)
计算:3xy-4xy-(-2xy)
3xy-4xy-(-2xy)
-1/3ab-1/4a²+1/3a²-(-2/3ab)
计算:3xy-4xy-(-2xy)3xy-4xy-(-2xy)-1/3ab-1/4a²+1/3a²-(-2/3ab)
3xy-4xy-(-2xy)=-xy+2xy=xy
-1/3ab-1/4a²+1/3a²-(-2/3ab)
=-1/12(4ab+3a²-4a²-8ab)
=-1/12a²+1/3ab
3xy-4xy-(-2xy)
=xy+2xy
=3xy
-1/3ab-1/4a²+1/3a²-(-2/3ab)
=-1/3ab-(-2/3ab) -1/4a²+1/3a²
=1/3ab-1/12a²
3xy-4xy-(-2xy)=-xy+2xy=xy
(-3xy+2xy)-(4xy+xy)
计算-xy-(4z-2xy)-(3xy-4z)
计算:3xy-4xy-(-2xy)要过程
3xy-4xy-(-2xy)
3xy-4xy-(-2xy)
3xy-3xy-xy+2yx
4xy+6xy-3xy=?
2xy.(-3xy)÷(xy)
2xy-xy-(-3xy)=
xy×(xy)²-3xy
计算:3xy-4xy-(-2xy)3xy-4xy-(-2xy)-1/3ab-1/4a²+1/3a²-(-2/3ab)
[(2xy-3)(2xy+3)+(xy+3)^2]/(-xy)
xy-3xy+2xy-xy
(-4xy^3)×(-xy)+(-3xy^2)^2
(-3xy^2)^2+(-4xy^3)*(-xy)=多少
(-4xy^3)*(-xy)+(-3xy^2)^2
(3xy^2)^2+(-xy^3)(4xy)
-xy(4z-2xy)-(3xy-4z) 化简