已知(b-2)/(a+1) = 4,求代数式3(b-2)/4(a+1) + (3a+3)/(b-2)的值

分类: 作业答案 • 2021-11-21 11:20:18

问题描述：

答

3(b-2)/4(a+1) + (3a+3)/(b-2)
=3/4 (b-2)/(a+1)+3/[(b-2)/(a+1)]
=3/4 *4+3/4
=3+3/4
=15/4