(2ab)^2(a^2+b^2)-(a^2b^2)÷a^3b^4+(-4a^4b^2)
计算:((a+b)(a-b)-(a-b)^2+2b(a-b))/4(a-b)
(a^2-b^2)/(a+b) [(a+b)^2-4ab]/(a-b)^2 计算
计算(3a-2b)(9a*a+6ab+4b*b)-(3a+2b)(9a*a-6ab+4b*b)
a-b/a+b 乘以 a^4-a^2b^2/a^2-ab
a-b/a^2+ab / ab-a^2/a^2b^2-b^4
1.(a-b)^2(b-a)^3(a-b)^-4
-2ab(3a^2-2ab-4b^2) (2b-a)b-(2a-b)a
计算,快(2a-b)(4a^2+b^2+2ab)-a(3a-b)(3a+b)
(a-2b)(a^2-2ab+4b^2)-a(a-5b)(a+3b)
2b根号a/b+3/a根号a立方b-(4a根号b/a+根号9ab)
计算a^2-b^2/a+b-4a(a-b)+b^2/2a-b
计算:[(a-b)(a+b)]^2-(a^2+ab+b^2)(a^2-ab+b^2)+(4a^2b^2)(b-1)(b+