作业帮化简：(2x-y)ˆ7 • [3(2x-y)]ˆ2 / [2/3(2x-y)ˆ3]ˆ3
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/14 04:22:04
![化简：(2x-y)ˆ7 • [3(2x-y)]ˆ2 / [2/3(2x-y)ˆ3]ˆ3](/uploads/image/z/10172064-48-4.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A%282x-y%29%26%23710%3B7+%26%238226%3B+%5B3%282x-y%29%5D%26%23710%3B2+%2F+%5B2%2F3%282x-y%29%26%23710%3B3%5D%26%23710%3B3)
化简：(2x-y)ˆ7 • [3(2x-y)]ˆ2 / [2/3(2x-y)ˆ3]ˆ3
化简：(2x-y)ˆ7 • [3(2x-y)]ˆ2 / [2/3(2x-y)ˆ3]ˆ3
化简：(2x-y)ˆ7 • [3(2x-y)]ˆ2 / [2/3(2x-y)ˆ3]ˆ3
(2x-y)^7*[3(2x-y)]^2/[2/3(2x-y)^3]^3
=(2x-y)^7*9(2x-y)^2/[8/27(2x-y)^9]
=9(2x-y)^9/[8/27(2x-y)^9]
=9/(8/27)
=9×27/8
=243/8
好多字母啊啊 看着都不想写