化简 3a²-[2ab-2(ab-3/2a²b)+ab]+4ab²
化简 3a²-[2ab-2(ab-3/2a²b)+ab]+4ab²
3a²b+ab²-2a²b²-3ab²-3a²b+4ab
a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快
已知ab²=6,求ab(a^2b^5-ab^3-b)的值
化简求值:3a²b-[2ab²-2(-a²b+4ab²)]-5ab²,
a^2-3ab+b^2/ab=( )/ab-3
a^2-3ab+b^2/ab=( )/ab -3
已知|a+1|+(a-b-2)²=0化简ab-[3a²b(4ab²+ab)-3a²
(9a²-6ab+b²)/(3a²-ab),其中b/a=2
计算:2/3a²-1/2ab+3/4a²+ab-b²
已知Ia+1I+(a+b-2)²=0,化简ab-2{ab-[3a²b-(4ab²+0.5a
3ab-2(a²-ab)-(a²-ab),其中(a-1)²+|b+1|=0 先化简后求值