Question

对于实数x若x分之1-x×根号下x^2-2x+1分之x^3=根号x,求x取值范围

Answer 1

参考下面
2/(X-1)=4/(X^2-1)
2/(X-1)-4/ [(X+1)(X-1)] =0
{2(X+1)-4}/ [(X+1)(X-1)]
=0
{2X+2-4}/ [(X+1)(X-1)] =0
2(X-1)/ [(X+1)(X-1)] =0
2/ [(X+1)] =0,无解