9x^2-4y^2-3x+2y 因式分解

分类: 作业答案 • 2021-12-28 11:00:16

问题描述：

答

9x^2-3x+1/4 -4y^2+2y-1/4
(3x-1/2)^2-(2y-1/2)^2
=(3x-1/2+2y-1/2)(3x-1/2-2y+1/2)
(3x+2y-1)(3x-2y)