3xy-4xy-(-2xy)
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3xy-4xy-(-2xy)3xy-4xy-(-2xy)3xy-4xy-(-2xy)提公因式xy,用结合律求3xy-4xy-(-2xy)=(3-4+2)xy=xy3xy-4xy-(-2xy)=3xy-
3xy-4xy-(-2xy)
3xy-4xy-(-2xy)
3xy-4xy-(-2xy)
提公因式xy,用结合律求
3xy-4xy-(-2xy)
=(3-4+2)xy
=xy
3xy-4xy-(-2xy)
=3xy-4xy+2xy
=xy
3xy-4xy-(-2xy)
=-xy+2xy
=xy
如果帮到你,请记得采纳,O(∩_∩)O谢谢
3xy-4xy-(-2xy)
3xy-4xy-(-2xy)
(-3xy+2xy)-(4xy+xy)
(-4xy^3)×(-xy)+(-3xy^2)^2
计算:3xy-4xy-(-2xy)要过程
(1)3xy-4xy-(-2xy)
(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程
(-3xy^2)^2+(-4xy^3)*(-xy)=多少
(-4xy^3)*(-xy)+(-3xy^2)^2
(3xy^2)^2+(-xy^3)(4xy)
计算-xy-(4z-2xy)-(3xy-4z)
-xy(4z-2xy)-(3xy-4z) 化简
3xy-4xy-(-2xy)的解法
3xy-4xy-(-2xy) 快啊,亲
3xy-3xy-xy+2yx
4xy+6xy-3xy=?
1.3xy -4xy-(2xy)
2xy.(-3xy)÷(xy)