a3-a2-a+1/a2-2a+1化简
1个回答
原式=[a²(a-1)-(a-1)]/(a-1)²
=(a-1)(a²-1)/(a-1)²
=(a-1)²(a+1)/(a-1)²
=a+1
相关问题
化简1/a+3/2a-a/2a-1=
化简(a+1)(a-2)/(a+2)(a-2)+3
先化简:[a+3/a+1]-[a−2a2−1
化简分式 化简分式 ( a2-9)/(a2+6a+9) +(a-3) /(a2+3a) - (a-a2) /(a-1)
数学同类项化简题3+2a-(2a^2-3a+1)如何化简
化简:3a^2-[5a-(1/2a-3)+2a^2]
化简求值:﹣3﹙a³-a²+2a-1﹚-2﹙﹣3a³+2a²-1/2a+2﹚-3
化简:2/a√4a+√1/a-2/a√a3
(3a+2)(2a+3)-(a-1)(a-1)化简是多少?
若a-1=1/(a-2),化简(2a^4-7a^3+2a^2+3a-3)/(a^2+1)