计算:(a^3-1)/a^3+2a²+2a+1)+(a^3+1)/a^3-2a²+2a-1)-[2(
计算:(2a+3)(a²+a-1)
计算:a²+9-6a分支2a²-4a-6/(4a+8)×4+3a-a²分支6+a-a
(a+1)(a+2)(a-3)计算
计算:(a^3-1)/a^3+2a²+2a+1)+(a^3+1)/a^3-2a²+2a-1)-[2(
(a 1)(a 2)(a 3)(a
计算a^3/a-1-a^2-a-1
计算(a+1)(a+2)(a+3)(a-6)
-2a(2a²+3a+1) 计算
计算3a+(1+a-2分之1)×a-1分之a²-2a
(高一集合)已知A={2,4,a*a*a-2a*a-a+7},B={1,a+3,a*a-2a+2,a*a*a+a*a+3
计算2a(a-3)^1-6a^2(3-a)-8a(a-3)
计算:(1)(a/a^2-1)+(3a+1/a^2-1)+(2a+3/1-a^2)