p^2-q(2p-q)-4p+4q-5 因式分解
人气:302 ℃ 时间:2020-04-03 22:42:52
解答
原式=p^2-2pq+q^2-4(p-q)-5
=(p-q)^2-4(p-q)-5
=(p-q-2)^2-9
=(p-q+1)(p-q-5)
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