求解数学题!求知道!急! 计算x-1分之x²+1-x分之x=____

问题描述:

求解数学题!求知道!急! 计算x-1分之x²+1-x分之x=____

x-1分之x2+1-x分之x
=x^2/(x-1)-x/(x-1)
=(x^2-x)/(x-1)
=x(x-1)/(x-1)
=x