1.(a^2b-ab)-(ab^2+ab)+2(ab^2+ba)2.2(a^2-2ab)-3(-2/3a^2-ab)
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1.(a^2b-ab)-(ab^2+ab)+2(ab^2+ba)2.2(a^2-2ab)-3(-2/3a^2-ab)
1.(a^2b-ab)-(ab^2+ab)+2(ab^2+ba)
2.2(a^2-2ab)-3(-2/3a^2-ab)
1.(a^2b-ab)-(ab^2+ab)+2(ab^2+ba)2.2(a^2-2ab)-3(-2/3a^2-ab)
1.(a^2b-ab)-(ab^2+ab)+2(ab^2+ba)
=a^2b-ab-ab^2-ab+2ab^2+2ab
=a^2b+ab^2
2.2(a^2-2ab)-3(-2/3a^2-ab)
=2a^2-4ab+2a^2+3ab
=4a^2+ab
1.(a^2b-ab)-(ab^2+ab)+2(ab^2+ba)
=(2ab-ab)-(2ab+ab)+2(2ab+ab)
=ab-3ab+2(3ab)
=-2ab+6ab
=4ab
2.2(a^2-2ab)-3(-2/3a^2-ab)
=4a-4ab-3(-4/3a-ab)
=4a-4ab+4a+3ab
=8a-ab
a+b/2ab
2AB/A+B
a+b/2ab
a^2-3ab+b^2/ab=( )/ab-3
a^2-3ab+b^2/ab=( )/ab -3
(a+ab)-[(ab-2b)-a]-(-9ab),其中a+b=-7,ab=3.
1.(a^2b-ab)-(ab^2+ab)+2(ab^2+ba)2.2(a^2-2ab)-3(-2/3a^2-ab)
a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快
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
b/(a^2-ab)+c/(b^2-ab)+(a+b^2)/(a^2b-ab^2)
(a-b)^2/ab-(a^2-b^2)/ab
(a+b-2ab)(a+b-2)+(1-ab)^2
[(a^2-2ab)/-ab+b^2]/[(a/a+b)/(2ab/2b-a)]
求3ab(a^b+ab^2-ab)-ab^2(2a^2+3ab-2a)的值
3ab(a²b-ab²-ab)-ab²(2a²-3ab+2a)
3ab(a²b-ab²-ab)-ab²(2a²-3ab+2a)
3ab·(a²b-ab²+ab)-ab²(2a²-3ab+2a)