2a+1+(a²-2)+(a²-2a+1) 怎么化简?

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/28 02:48:58
2a+1+(a²-2)+(a²-2a+1) 怎么化简?
x)3J6~#QMZN>P(Ύ=ӞkI*'S~ %>tO-jmd}`e@!<;6` &k㌴Zt㌐ZV

2a+1+(a²-2)+(a²-2a+1) 怎么化简?
2a+1+(a²-2)+(a²-2a+1) 怎么化简?

2a+1+(a²-2)+(a²-2a+1) 怎么化简?
原式=2a+1+a²-2+a²-2a+1
=2a²

2a+1+(a²-2)+(a²-2a+1)
=2a+1+a²-2+a²-2a+1
=2a²

原式=a^2+2+a^2-2=2a^2