6a^5b^4÷(4ab)^2+(-1/8ab)(-5a^2b)计算
计算:(1/4a^2b)×(-2ab^2)÷(0.5a^4b^5)
计算 (-2ab)^3(5a^2b-1/2ab^2+1/4b^3)
计算:(4ab³+6a³b-8a³b²)÷2ab-(a+b)(3a-2b)
合并同类项: -5a^b+6ab^-4ab-2a^b+4ab+3
合并同类项:-5a^b+6ab^-4ab-2a^b+4ab+3
a^2b-ab+2ab^2-5a^b-4ab+3ab^2化简快
计算:[a-b分之4ab+(b分之a-a分之b)÷a分之1+b分之1)]÷(a²+2ab+b²)
计算:[(a+b)^2-4ab][(a-b)^2+4ab]-(a^2-b^2)^2
计算:[(a-b)(a+b)]^2-(a^2+ab+b^2)(a^2-ab+b^2)+(4a^2b^2)(b-1)(b+
若a+b=3,ab=-2,求(5a-5b-ab)-(4a-6b-3ab)
计算(3a-2b)(9a*a+6ab+4b*b)-(3a+2b)(9a*a-6ab+4b*b)
计算(a^3-4a^2b-a+4ab^2)/a(a-2b+1)