(-x)的6次方-(-3x的3次方)的2次方+8[-(-x)的3次方]的2次方
=x的6次幂 - 9x的6次幂 + 8x的6次幂
=0
.
-(-2x的2n次方)的2次方(x的4次方)的n+1次方-(2x的2n+1次方)的2次方=
=- 4x的4n次幂·x的4n+4次幂 - 4x的4n+2次幂
=- 4x的8n+4次幂-4x的4n+2次幂
=-4x的4n+2次幂·(x的4n+2次幂 +1)
(-x)的6次方-(-3x的3次方)的2次方+8[-(-x)的3次方]的2次方
=x的6次幂 - 9x的6次幂 + 8x的6次幂
=0
.
-(-2x的2n次方)的2次方(x的4次方)的n+1次方-(2x的2n+1次方)的2次方=
=- 4x的4n次幂·x的4n+4次幂 - 4x的4n+2次幂
=- 4x的8n+4次幂-4x的4n+2次幂
=-4x的4n+2次幂·(x的4n+2次幂 +1)