8x^2-40x/30x^2-6x^3

分类: 作业答案 • 2022-03-20 13:47:53

问题描述：

8x^2-40x/30x^2-6x^3

答

[8x^2-40x]/[30x^2-6x^3]
=[8x(x-5)]/[6x^2(5-x)]
=[8x(x-5)]/[-6x^2(x-5)]
=-4/(3x)