ab-(2ab-3a^2b)怎么解

ab-(2ab-3a^2b)怎么解 ab-（2ab-3a^2b）怎么算? a^2-3ab+b^2/ab=( )/ab-3 a^2-3ab+b^2/ab=( )/ab -3 5(3a^2b-ab^2)-(ab^2+3a^2b)怎么化简 (3a*2b+3a*ab+2b*ab)×2怎么算 a+2ab+b/2a-3ab+2b怎么化简? b^2+ab分之a^2+ab怎么化简? a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快 8ab-{4a-3[6ab+5(ab+a-b)-7a]-2}这道题怎么做 计算：2ab[(2ab)²-3b(ab+a²b)-ab²] 3ab{(-2ab)平方-3b(ab-a平方b)+ab平方}算出来多少Rt 已知(a+2b)^2+|2b-1|=0求ab-{2ab-3(ab-1)}你们怎么不同 (25a^2b^2-10ab)÷5ab+32ab^3÷（-2b)^2怎么做 ab/a+b=3 a-2ab+b/2a-3ab+2b? a+b/2ab 2AB/A+B a+b/2ab