因式分解：4/9x^n+2-8/27x^n

分类: 作业答案 • 2021-12-20 00:24:48

问题描述：

答

(4/9)x^n+2-(8/27)x^n
=[(12-8)/27]x^n+2
=(4/27)x^n+2
=(4/27)x^n+2/27*27
=(2/27)(2x^n+27)