化简:a^2-1+2ab+b^2/a+b+1=_________
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化简:a^2-1+2ab+b^2/a+b+1=_________化简:a^2-1+2ab+b^2/a+b+1=_________化简:a^2-1+2ab+b^2/a+b+1=_________a^2-
化简:a^2-1+2ab+b^2/a+b+1=_________
化简:a^2-1+2ab+b^2/a+b+1=_________
化简:a^2-1+2ab+b^2/a+b+1=_________
a^2-1+2ab+b^2/a+b+1
=[(a+b)^2-1]/(a+b+1)
=[(a+b+1)(a+b-1)/(a+b+1)
=a+b-1
(a-b+ab-a^2/a+b)乘以[a+1/a-b乘以(1+a/b)]
a+b/2ab
2AB/A+B
a+b/2ab
急……ab/(a+b-1)(a+b) + ab/(a+b)(a+b+1) + ab(a+b+1)(a+b+2) + …… + ab/(a+b+98)(a+b+99) + ab/(a+b+99)(a+b+100)
计算ab/(a+b-1)(a+b)+ab/(a+b)(a+b+1)+ab/(a+b+1)(a+b+2)+.+ab/(a+b+98)(a+b+99)+ab/(a+b+99)(a+b+100)
(1/a-b-1/a+b)/[b/(a^2-2ab+b^2)] (因式分解)化简
(1/(a-b)-1/(a+b)÷b/(a^2-2ab+b^2),化简
(a+b-2ab)(a+b-2)+(1-ab)^2
ab^3+b^2+b-a+1
化简 b²-a²/a²-ab÷(a+(2ab+b²/a))·(1/a+1/b)
(a-b)平方-2ab(b-a)
(a-b)^3+2ab(a-b)
化简:(a/ab-b方-b/a方-ab)除以(1+a方+b方/2ab)
a(a+b)(a-b)-a(a+b)(a+b),其中(a+b)=1,ab=-1/2
a(a-1)-(a×a-b)=-5,求(a×a+b×b)÷2-ab
因式分解:a×a×a-2a×a×b+ab×b
已知a0,化简|a|-|b|+|a+b|+|ab|等于A.-ab B. 2a+2b+abC.-2a-2b+ab D.-2a+ab