(3/2)^2-(2m-8)*3/2+m^2-16化简,(3/2)^2-(2m-8)*3/2+m^2-16化简,我最需要的是过程.4m^2-12m-7
问题描述:
(3/2)^2-(2m-8)*3/2+m^2-16化简,
(3/2)^2-(2m-8)*3/2+m^2-16化简,我最需要的是过程.
4m^2-12m-7
答
(3/2)^2-(2m-8)*3/2+m^2-16
=(3/2)^2-(2m-8)*3/2+m^2-16
=9/4-3m+12+m^2-16
=m^2-3m-9/4+12-16
=m^2-3m-7/4
要算成你那参考答案的话你在仔细看看是不是抄错了!!!
答
(3/2)^2-(2m-8)*3/2+m^2-16
=9/4-3m+12+m^2-16
=m^2-3m-7/4