化简 (2a²-5a)-2(3a-5+a²),a=1
2个回答
(2a²-5a)-2(3a-5+a²)
=2a²-5a-6a+10-2a²
=-11a+10
=-11*1+10
=-1
相关问题
化简3a-[5a-(2a-1)]
化简:3a-[5a-(2a-1)]=
化简:5a²-【a²+(5a²-2a)-2(a²-3a)】
化简5a²+[a²+(5a²-2a)-2(a²-3a)]
化简:3a^2-[5a-(1/2a-3)+2a^2]
化简:a^2+3a+2/a^2+6a+5=()/a+5
化简:5a2-[a2+(5a2-2a)-2(a2-3a)].
化简:5a2-[a2+(5a2-2a)-2(a2-3a)].
化简:5a2-[a2+(5a2-2a)-2(a2-3a)].
化简:-(2a^2+5)+(3a^2-2)-2(3a^2-1)