来自李恩有的问题
若xm-yn=(x+y2)(x-y2)(x2+y4),则m=___,n=___.
若xm-yn=(x+y2)(x-y2)(x2+y4),则m=___,n=___.
1回答
2020-03-20 07:09
若xm-yn=(x+y2)(x-y2)(x2+y4),则m=___,n=___.
若xm-yn=(x+y2)(x-y2)(x2+y4),则m=___,n=___.
右边=(x2-y4)(x2+y4)=x4-y8=xm-yn=左边,
∴m=4,n=8.
故答案分别为:4;8.