已知p²-pq=1,pq-3p²=2,求p²+3pq-3p²的值.是p²-pq=1,pq-3p²=2,求p²+3pq-3q²的值

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已知p²-pq=1,pq-3p²=2,求p²+3pq-3p²的值.是p²-pq=1,pq-3p²=2,求p²+3pq-3q²的值
已知p²-pq=1,pq-3p²=2,求p²+3pq-3p²的值.
是p²-pq=1,pq-3p²=2,求p²+3pq-3q²的值

已知p²-pq=1,pq-3p²=2,求p²+3pq-3p²的值.是p²-pq=1,pq-3p²=2,求p²+3pq-3q²的值
已知p²-pq=1,pq-3p²=2,求p²+3pq-3p²吗?
p²+3pq-3p²
=p²+2pq+pq-3p²
=p²+2pq+2
=p²-pq+2pq+2+pq
=1+3pq+2
=3+3pq
=3(1+pq)