①(-3ab)(2a^b+ab-1)②(6ab^3+2ab^2-3ab+1)(-2a^b)
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①(-3ab)(2a^b+ab-1)②(6ab^3+2ab^2-3ab+1)(-2a^b)①(-3ab)(2a^b+ab-1)②(6ab^3+2ab^2-3ab+1)(-2a^b)①(-3ab)(2a
①(-3ab)(2a^b+ab-1)②(6ab^3+2ab^2-3ab+1)(-2a^b)
①(-3ab)(2a^b+ab-1)②(6ab^3+2ab^2-3ab+1)(-2a^b)
①(-3ab)(2a^b+ab-1)②(6ab^3+2ab^2-3ab+1)(-2a^b)
应该是这样(-3ab)(2a^b ab-)
=-6a^b 1-3a^2 ab
(6ab^3 2ab^2 1)(-2a^b)
=-12a^b 1-4a^b 1b^2-2ab
①(-3ab)(2a^b+ab-1)②(6ab^3+2ab^2-3ab+1)(-2a^b)
初二数学,①–(–3ab)(2a²b+ab–1)②3ab(a²b–ab²+ab)-ab²(2a²-3ab+2a)
①–(–3ab)(2a²b+ab–1)②3ab(a²b–ab²+ab)-ab²(2a²-3ab+2a)
已知a-b=3,ab=-2,求:①a²b-ab²;②a²+b²-2ab-1的值
ab^3+b^2+b-a+1
(-3ab)(a^2b-3ab^2+1)
a^2-3ab+b^2/ab=( )/ab-3
a^2-3ab+b^2/ab=( )/ab -3
3a²b-[2ab²-6(ab-1/2a²b)+4ab]-2ab
(a+b)^2- 2b-1 绝对值=0 求证ab-[2ab-3(ab-1)]
已知ab^2=-1,求-ab(a^2b^5-ab^3-b)的值
(a^2b-ab-a+1)/(ab^2+3ab-b-3)÷(a^2+a_2)/(b^2+b-6)
a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快
已知a+b=1/2,ab=3/b求ab+2ab+ab的值
1/4a^2b^2{3ab(a+b)-5a(ab-b^2)}=?
1/a+1/b=3则a-ab+b/a+2ab+b值是?
如果a+b=3,ab=-1,那么(a+b)2-a-b+ab=?
-3/4ab+2/3a^2b+ab-a^2b-1/2ab-5/3a^2b