【数学计算】【化简求值】【(x²-4)分之4-(x-2)分之1】÷(x-2)分之1【数学计算】【化简求值】【(x²-4)分之4-(x-2)分之1】÷(x-2)分之1x=2013【解方程】(x-3)分之x+(3-x)分
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/01 22:07:18
![【数学计算】【化简求值】【(x²-4)分之4-(x-2)分之1】÷(x-2)分之1【数学计算】【化简求值】【(x²-4)分之4-(x-2)分之1】÷(x-2)分之1x=2013【解方程】(x-3)分之x+(3-x)分](/uploads/image/z/7640148-12-8.jpg?t=%E3%80%90%E6%95%B0%E5%AD%A6%E8%AE%A1%E7%AE%97%E3%80%91%E3%80%90%E5%8C%96%E7%AE%80%E6%B1%82%E5%80%BC%E3%80%91%E3%80%90%EF%BC%88x%26%23178%3B-4%EF%BC%89%E5%88%86%E4%B9%8B4-%EF%BC%88x-2%EF%BC%89%E5%88%86%E4%B9%8B1%E3%80%91%C3%B7%EF%BC%88x-2%EF%BC%89%E5%88%86%E4%B9%8B1%E3%80%90%E6%95%B0%E5%AD%A6%E8%AE%A1%E7%AE%97%E3%80%91%E3%80%90%E5%8C%96%E7%AE%80%E6%B1%82%E5%80%BC%E3%80%91%E3%80%90%EF%BC%88x%26%23178%3B-4%EF%BC%89%E5%88%86%E4%B9%8B4-%EF%BC%88x-2%EF%BC%89%E5%88%86%E4%B9%8B1%E3%80%91%C3%B7%EF%BC%88x-2%EF%BC%89%E5%88%86%E4%B9%8B1x%3D2013%E3%80%90%E8%A7%A3%E6%96%B9%E7%A8%8B%E3%80%91%EF%BC%88x-3%EF%BC%89%E5%88%86%E4%B9%8Bx%2B%EF%BC%883-x%EF%BC%89%E5%88%86)
【数学计算】【化简求值】【(x²-4)分之4-(x-2)分之1】÷(x-2)分之1【数学计算】【化简求值】【(x²-4)分之4-(x-2)分之1】÷(x-2)分之1x=2013【解方程】(x-3)分之x+(3-x)分
【数学计算】【化简求值】【(x²-4)分之4-(x-2)分之1】÷(x-2)分之1
【数学计算】
【化简求值】
【(x²-4)分之4-(x-2)分之1】÷(x-2)分之1
x=2013
【解方程】
(x-3)分之x+(3-x)分之2=2
顺便回答:
【数学计算】【化简求值】【(x²-4)分之4-(x-2)分之1】÷(x-2)分之1【数学计算】【化简求值】【(x²-4)分之4-(x-2)分之1】÷(x-2)分之1x=2013【解方程】(x-3)分之x+(3-x)分
第一题原试=(4/(x-2)(x+2)-(x+2)/((x-2)(x+2)))*(x-2)
=(2-x)/((x+2)(x-2))*(x-2)
=(2-x)/(x+2)带入x=2013
=-2011/2015
第二题 x/(x-3)+2/(3-x)=2
x/(x-3)-2/(x-3)=2
(x-2)/(x-3)=2
x-2=2(x-3)
x=4