2x/x²-64y² - 1/x-8y

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/01 07:43:41
2x/x²-64y²-1/x-8y2x/x²-64y²-1/x-8y2x/x²-64y²-1/x-8y2x/(x²-64y

2x/x²-64y² - 1/x-8y
2x/x²-64y² - 1/x-8y

2x/x²-64y² - 1/x-8y
2x/(x²-64y²) - 1/(x-8y)
=2x/(x+8y)(x-8y) - (x+8y)/(x+8y)(x-8y)
=(2x-x-8y)/(x+8y)(x-8y)
=(x-8y)/(x+8y)(x-8y)
=1/(x+8y)