2x·(3x²y-xy²+1)

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2x·(3x²y-xy²+1)2x·(3x²y-xy²+1)2x·(3x²y-xy²+1)2x·(3x²y-xy²+1)

2x·(3x²y-xy²+1)
2x·(3x²y-xy²+1)

2x·(3x²y-xy²+1)
2x·(3x²y-xy²+1)
=6x3y-2x2y²+2x