化简(3a^2-1/2a+5)-(a^2+3/2a-1)-(-5/2a^2-6)

分类: 作业答案 • 2021-12-19 11:02:48

问题描述：

答

(3a^2-1/2a+5)-(a^2+3/2a-1)-(-5/2a^2-6) => 3a^2-0.5a+5 -a^2-1.5a+1 +2.5a^2+6 => 4.5a^2-2a+12