2x·(3x²y-xy²+1)
问题描述:
2x·(3x²y-xy²+1)
答
2x·(3x²y-xy²+1)
=6x3y-2x2y²+2x
2x·(3x²y-xy²+1)
2x·(3x²y-xy²+1)
=6x3y-2x2y²+2x