把(p-q)³-p(p-q)²-q(q-p)²因式分解
人气:473 ℃ 时间:2020-02-04 00:54:56
解答
(p-q)³-p(p-q)²-q(q-p)²
=(p-q)³-p(p-q)²-q(p-q)²
=(p-q)²(p-q-p-q)
=-2q(p-q)²
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