计算行列式的值|x+1x||x2x2-x+1|

计算行列式的值
|x+1x|
|x²x²-x+1|
【正确答案】：| x+1 x | |x² x²-x+1| = | x+1-x x | |x²-(x²-x+1) x²-x+1| = | 1 x | |x-1 x²-x+1| =x²-x+1-x²+x=1