作业帮解方程(2.25+3x)³/[(0.5-2x)²(0.25-x)]=(0.75)³/[(0.5)²(0.25)]
来源：学生作业帮助网 编辑：作业帮 时间：2024/06/17 16:52:04
![解方程(2.25+3x)³/[(0.5-2x)²(0.25-x)]=(0.75)³/[(0.5)²(0.25)]](/uploads/image/z/699947-35-7.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%282.25%2B3x%29%26%23179%3B%2F%5B%280.5-2x%29%26%23178%3B%280.25-x%29%5D%3D%280.75%29%26%23179%3B%2F%5B%280.5%29%26%23178%3B%280.25%29%5D)
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解方程(2.25+3x)³/[(0.5-2x)²(0.25-x)]=(0.75)³/[(0.5)²(0.25)]
解方程(2.25+3x)³/[(0.5-2x)²(0.25-x)]=(0.75)³/[(0.5)²(0.25)]
解方程(2.25+3x)³/[(0.5-2x)²(0.25-x)]=(0.75)³/[(0.5)²(0.25)]
将0.25-x和0.25都乘以2,所以等式两边大小不变得(2.25+3x)³/[(0.5-2x)²(0.5-2x)]=(0.75)³/[(0.5)²(0.5)].式子合并得(2.25+3x)³/(0.5-2x)3=(0.75)³/[(0.5)3,所以再合并得(2.25+3x)/(0.5-2x)=(0.75)/（0.5),解得x=-0.25.