因式分解(-8x^n+1)(y^2n+3)+(12x^2n+2)(y^n+2)

问题描述:

因式分解(-8x^n+1)(y^2n+3)+(12x^2n+2)(y^n+2)

(-8x^n+1)(y^2n+3)+(12x^2n+2)(y^n+2)
=4x^n+1 y^n+2 (3x^n+1 -2y^n+1 )请问,你的推理过程是如何从第一步到第二步的呢?
(-8x^n+1)(y^2n+3)+(12x^2n+2)(y^n+2)
怎么做到下一步的
=4x^n+1 y^n+2 (3x^n+1 -2y^n+1 )把每项里的4x^n+1 y^n+2提出来就可以了