化简a²-4分之2a-a-2分之1
来源:学生学帮网 编辑:学帮网 时间:2024/07/01 06:45:48
化简a²-4分之2a-a-2分之1
原式=2a/(a+2)(a-2)-(a+2)/(a+2)(a-2)
=(2a-a-2)/(a+2)(a-2)
=(a-2)/(a+2)(a-2)
=1/(a+2)
=a+2
化简a²-4分之2a-a-2分之1
原式=2a/(a+2)(a-2)-(a+2)/(a+2)(a-2)
=(2a-a-2)/(a+2)(a-2)
=(a-2)/(a+2)(a-2)
=1/(a+2)
=a+2