计算:1、(2c分之ab)³÷c²分之2a+2b分之1;2、[(x-1分之x²)-(1-x分之2x)]÷x-1分之x化简:[(x+1分之x²)-(x+1分之1)]÷x分之x-1
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 22:10:47
![计算:1、(2c分之ab)³÷c²分之2a+2b分之1;2、[(x-1分之x²)-(1-x分之2x)]÷x-1分之x化简:[(x+1分之x²)-(x+1分之1)]÷x分之x-1](/uploads/image/z/2639842-34-2.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A1%E3%80%81%EF%BC%882c%E5%88%86%E4%B9%8Bab%EF%BC%89%26%23179%3B%C3%B7c%26%23178%3B%E5%88%86%E4%B9%8B2a%2B2b%E5%88%86%E4%B9%8B1%EF%BC%9B2%E3%80%81%5B%EF%BC%88x-1%E5%88%86%E4%B9%8Bx%26%23178%3B%EF%BC%89-%EF%BC%881-x%E5%88%86%E4%B9%8B2x%EF%BC%89%5D%C3%B7x-1%E5%88%86%E4%B9%8Bx%E5%8C%96%E7%AE%80%EF%BC%9A%5B%EF%BC%88x%2B1%E5%88%86%E4%B9%8Bx%26%23178%3B%EF%BC%89-%EF%BC%88x%2B1%E5%88%86%E4%B9%8B1%EF%BC%89%5D%C3%B7x%E5%88%86%E4%B9%8Bx-1)
计算:1、(2c分之ab)³÷c²分之2a+2b分之1;2、[(x-1分之x²)-(1-x分之2x)]÷x-1分之x化简:[(x+1分之x²)-(x+1分之1)]÷x分之x-1
计算:1、(2c分之ab)³÷c²分之2a+2b分之1;2、[(x-1分之x²)-(1-x分之2x)]÷x-1分之x
化简:[(x+1分之x²)-(x+1分之1)]÷x分之x-1
计算:1、(2c分之ab)³÷c²分之2a+2b分之1;2、[(x-1分之x²)-(1-x分之2x)]÷x-1分之x化简:[(x+1分之x²)-(x+1分之1)]÷x分之x-1
第一题没有看懂你的式子
2、=[x²/(x-1)+2x/(x-1)]×x/(x-1)
=(x²+2x)/(x-1)× x/(x-1)
=x²(x+2)/(x-1)² 你有没有搞错分子与分母