已知p²-pq=1,4pq-3q²=2,求p²+3pq-3p²的值

来源：学生作业帮助网编辑：六六作业网时间：2024/05/21 14:31:30

已知p²-pq=1,4pq-3q²=2,求p²+3pq-3p²的值已知p²-pq=1,4pq-3q²=2,求p²+3pq-3p&#

已知p²-pq=1,4pq-3q²=2,求p²+3pq-3p²的值
已知p²-pq=1,4pq-3q²=2,求p²+3pq-3p²的值

已知p²-pq=1,4pq-3q²=2,求p²+3pq-3p²的值
解析
p²+3pq-3q²
=p²-pq+4pq-3q²
=(p²-pq)+(4pq-3q²）
=1+2
=3