因式分解:5x^2+6y-15x-2xy

分类: 作业答案 • 2021-12-20 09:05:35

问题描述：

答

5x² + 6y - 15x - 2xy
= (5x² - 15x) -(2xy - 6y)
= 5x(x - 3) - 2y(x - 3)
= (5x - 2y)(x - 3)

答

原式=(5x²-15x)-(2xy-6y)
=5x(x-3)-2y(x-3)
=(x-3)(5x-2y)