-3ab-4a^2+3a^2+5ab
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-3ab-4a^2+3a^2+5ab-3ab-4a^2+3a^2+5ab-3ab-4a^2+3a^2+5ab解-3ab-4a²+3a²+5ab=(-4a²+3a²
-3ab-4a^2+3a^2+5ab
-3ab-4a^2+3a^2+5ab
-3ab-4a^2+3a^2+5ab
解
-3ab-4a²+3a²+5ab
=(-4a²+3a²)+(5ab-3ab)
=-a²+2ab
=(-4+3)a²+(5-3)ab
=-a²+2ab
a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快
-3ab-4a^2+3a^2+5ab
合并同类项5a²b-3ab-4ab²+7ab-2ab²
5ab^2-{2a^b-[3ab^2-(4ab^2-2a^2b)]}
计算:5ab-a²-2(ab-3a)²
(3a-ab+7)-(-4a+2ab+7)
化简:(-3ab)(-5ab)+2/3ab的二次方(7/3ab-2a)
-3/4ab+2/3a^2b+ab-a^2b-1/2ab-5/3a^2b
a-b=-2,ab=-1时,(3a-4b-ab)-(2a-3b+5ab)=?
a+b=5 ab=-3 (2a-3b-2ab)-(a-4b-ab)
若a+b=3,ab=-2,求(5a-5b-ab)-(4a-6b-3ab)
已知a-b=2,ab=-1 求(4a-5b-ab)-(2a-3b-5ab)
8ab-{4a-3[6ab+5(ab+a-b)-7a]-2}这道题怎么做
(3a²b-4ab²-5ab)·(-2ab²)
AB比3:2 A减少15后,AB比5:4 现在AB各多少?
a^2-3ab+b^2/ab=( )/ab-3
a^2-3ab+b^2/ab=( )/ab -3
1/4a^2b^2{3ab(a+b)-5a(ab-b^2)}=?