a^2(b^2-a^2)-b^2(a^2-1) x(x-y)-y(3x-4y) x^2+4/1-y^2-x -4x^3y^2+6x^2y^3-12x^2y^2 都是因式分解a^2(b^2-a^2)-b^2(a^2-1) x(x-y)-y(3x-4y)x^2+4/1-y^2-x -4x^3y^2+6x^2y^3-12x^2y^2 都是因式分解
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-2a(a+b)+b(a+b)
(a+2b)(a-2b)+(a-b)(a+b)-2(a-3b)(a-b)
5(a*a*b-3*a*a*b)-2*(a*a*b-7*a*b*b)
化简:a-[b-2a-(a-b)]
化简(2a-b/a+b-b/a-b)÷a-2a/a-b
(2/3a)-[2/(a+b)]{[(a+b)/3a]-a-b}÷[(a-b)/b]
-a-b+2b^2/a+b
(2/3a)-[2/(a+b)]{[(a+b)/3a]-a-b}÷[(a-b)/a]
化简:[2/3a - 2/(a+b) * (a+b/3a - a - b)] / (a-b)/a
(a/a-b-a/a+b)(a+b)(a-b)/2b
(b-a)*(b-a)+(b-a)*2*a等于多少?
化简:|a+b|+|b-a|+|2b|
|a+b|-|b-a|+|2b|化简哦!
a-b+2b²/a+b
通分a-b,2b^/a+b
化简(2a-b/a+b-b/a-b)除以a-2b/a+b
计算:((a+b)(a-b)-(a-b)^2+2b(a-b))/4(a-b)
化简(2a-b/a+b-b/a-b)除以a-2b/a +b