化简:b/(a-b)+b^2/(a^3-2a^2b+ab^3)*(ab+b^2)/(b^2-a^2)
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化简:b/(a-b)+b^2/(a^3-2a^2b+ab^3)*(ab+b^2)/(b^2-a^2)
化简:b/(a-b)+b^2/(a^3-2a^2b+ab^3)*(ab+b^2)/(b^2-a^2)
化简:b/(a-b)+b^2/(a^3-2a^2b+ab^3)*(ab+b^2)/(b^2-a^2)
b/(a-b)+b^2/(a^3-2a^2b+ab^3)*(ab+b^2)/(b^2-a^2)
=b/(a-b)-[b^2/a(a^2-2ab+b^2)]*b(a+b)]/(a^2-b^2)
=b/(a-b)-[b^2/a(a-b)^2]*(a+b)(a-b)/b(a+b)
=b/(a-b)-b/a(a-b)
=(ab-b)/a(a-b)
=b(a-1)/a(a-b)
化简a/b(a-b)-b/a(a-b)其中a=3 b=-2
化简:[2/3a - 2/(a+b) * (a+b/3a - a - b)] / (a-b)/a
化简:|a+b|+|b-a|+|2b|
(a+2b)(a-2b)+(a-b)(a+b)-2(a-3b)(a-b)
化简 (a+b)²+2a(a-1/2b)-3(a-b)(a+b)
(2a-3b)[(a+b)-b(a-3b)]
化简(2a-b/a+b-b/a-b)除以a-2b/a+b
化简(2a-b/a+b-b/a-b)除以a-2b/a +b
化简:{[(2a-b)/(a+b)]-[b/(a-b)]}÷[(a-2b)/(a+b)]
5(a*a*b-3*a*a*b)-2*(a*a*b-7*a*b*b)
a^2+b(b+1)a+b^3 ,化简
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]
化简【2a-b】【2a+b】-【-3a+2b】【-3a-2b】
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化简(a+b)(a-b)-(3a-2b)(3a+2b)