2/3ab+3/4a^2b+ab+(-3/4a^2b)-1
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2/3ab+3/4a^2b+ab+(-3/4a^2b)-12/3ab+3/4a^2b+ab+(-3/4a^2b)-12/3ab+3/4a^2b+ab+(-3/4a^2b)-12/3ab+3/4a
2/3ab+3/4a^2b+ab+(-3/4a^2b)-1
2/3ab+3/4a^2b+ab+(-3/4a^2b)-1
2/3ab+3/4a^2b+ab+(-3/4a^2b)-1
2/3ab+3/4a²b+ab+(-3/4a²b)-1
=(2/3ab+ab)+[3/4a²b+(-3/4a²b)]-1
=5/3ab-1
a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快
a^2-3ab+b^2/ab=( )/ab-3
a^2-3ab+b^2/ab=( )/ab -3
合并同类项5a²b-3ab-4ab²+7ab-2ab²
5ab^2-{2a^b-[3ab^2-(4ab^2-2a^2b)]}
3a²b-[2ab²-6(ab-1/2a²b)+4ab]-2ab
3ab{(-2ab)平方-3b(ab-a平方b)+ab平方}算出来多少Rt
计算:2ab[(2ab)²-3b(ab+a²b)-ab²]
ab/a+b=3 a-2ab+b/2a-3ab+2b?
(a-b)^3+2ab(a-b)
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)
3ab(a²b-ab²-ab)-ab²(2a²-3ab+2a)
-ab(a^2b^5-ab^3-b)
-3/4ab+2/3a^2b+ab-a^2b-1/2ab-5/3a^2b
1/4a^2b^2{3ab(a+b)-5a(ab-b^2)}=?