2/3a²+3/4b-5/6ab
合并同类项: -5a^b+6ab^-4ab-2a^b+4ab+3
合并同类项:-5a^b+6ab^-4ab-2a^b+4ab+3
若a+b=3,ab=-2,求(5a-5b-ab)-(4a-6b-3ab)
a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快
已知:a-b=4,ab=3,求多项式(2a+5b-3ab)-(a+6b-ab)-(2ab+2b-2a)的值
已知ab²=6,求ab(a^2b^5-ab^3-b)的值
a³+a²b-(4a²b+3ab²)+b³+6ab²+2b&
数学题☞2a²-3ab+4b²-5ab-6b²☞3a²-
化简求值:3a²b-[2ab²-2(-a²b+4ab²)]-5ab²,
(6a²-2a²)-(-a²+2ab+b²)-(a²-4ab+3b
3a²b+ab²-2a²b²-3ab²-3a²b+4ab
2A+4+3AB+6B