计算:a2-2ab/-ab+b2÷(a2/a-b÷2ab/2b-a)
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计算:a2-2ab/-ab+b2÷(a2/a-b÷2ab/2b-a)计算:a2-2ab/-ab+b2÷(a2/a-b÷2ab/2b-a)计算:a2-2ab/-ab+b2÷(a2/a-b÷2ab/2b-
计算:a2-2ab/-ab+b2÷(a2/a-b÷2ab/2b-a)
计算:a2-2ab/-ab+b2÷(a2/a-b÷2ab/2b-a)
计算:a2-2ab/-ab+b2÷(a2/a-b÷2ab/2b-a)
(a^2-2ab)/(-ab+b^2)÷a^2/(a-b)÷2ab/(2b-a)
=a(a-2b)/[-b(a-b)]÷a^2/(a-b)÷[-2ab/(a-2b) ]
=a(a-2b)/[b(a-b)]÷a^2/(a-b)÷2ab/(a-2b)
=a(a-2b)/[b(a-b)]*(a-b)/a^2*(a-2b)/2ab
=a(a-2b)/b*1/a^2*(a-2b)/2ab
=(a-2b)/b*1/a^2*(a-2b)/2b
=(a-2b)^2/(2a^2b^2)
计算 (a2+ab+b2)*(a2-ab+b2)
a2-2ab+b2
计算:a2-2ab/-ab+b2÷(a2/a-b÷2ab/2b-a)
计算:x2-(a2+b2)x+ab(a2-b2)
计算 (a2 +ab+b2)(a2 -ab+b2)注意,那个“2”是指2次方~
(a2+2ab+b2)-(a2-2ab+b2)化简
(3a2-3ab+2b2)+(a2+4ab-2b2)=4a2+ab+b2
(a2-b2)(a2+ab+b2)(a2-ab+b2)=
a2*a2-b2/b-ab2÷(1+a2+b2/2ab)
a2+ab+b2因式分解
(a2-b2)/(a2+2ab+b2)*(a3+b3)
3(a2-2ab)-(-ab+b2)+(2ab+b2)
化简 3a2-ab/3a2+5ab-2b2
已知a2+AB=3,AB-B2= -2求a2+b2,a+2ab-b2
a2b+ab2分之a2+2ab+b2-(a2-ab2分之a2-2ab+b2)
化简:(a2-b2)/(a2+2ab+b2)÷(2a-2b)/(a+b)
【数学题】 计算 (a2+ab+b2)*(a2-ab+b2)急啊!马上就要要!
已知a2++ab=3,ab+b2=1,试求a2+2ab+b2,a2-b2的值