2ab*3a^2b+(-3a^2b)(3ab)
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2ab*3a^2b+(-3a^2b)(3ab)
2ab*3a^2b+(-3a^2b)(3ab)
2ab*3a^2b+(-3a^2b)(3ab)
2ab*3a^2b+(-3a^2b)(3ab)
=6a^3b^2-9a^3b^2
=-3a^3b^2
2ab*3a^2b+(-3a^2b)(3ab)
=6a³b²-9a³b²
=-3a³b²
(a-b)^3+2ab(a-b)
(a-b)(3ab+2a²b-b³)
ab/a+b=3 a-2ab+b/2a-3ab+2b?
ab^3+b^2+b-a+1
-2ab乘以(-a^+6a^b-3a+b)
18ab(a-b)^2-12a(b-a)^3
(ab(a^-2ab)-a^2b(a-3b))÷(3a^b)
a^3-ab^2 =a (a^2 -b^2) =a(a+b)(a-b)
3(-ab+2a)-(3a-b)
3(-ab+2a)-(3a-b)
已知3a*a+ab-2b*b=0(a不等于0,b不等于0),求a/b-b/a-(a*a+b*b)/ab的值.
(a-b)(a^5+a^4b+a^3b^2+ab^4+b^5)bggg
b/a+a/b=3,求2ab/(a*a+b*b)-(3a*a+ab+3b*b)/2ab的值
已知a*a-ab=3,ab+b*b=-5,求代数式a*a+b*b与a*a-2ab-b*b的值
分解因式a(a-b)^3+2a^2(b-a)^2-2ab(b-a)
分解因式a(a-b)^3+2a^2(b-a)^2-2ab(b-a)
-ab(a-b)^2+a(b-a)^2-a(a-b)^3
1/4a^2b^2{3ab(a+b)-5a(ab-b^2)}=?