Mathematics
Senior High

因数分解の問題です。4番分かりませんー

(2②) 27xー12z“ッ ④ 3zめー42259一 5“

Answers

3a⁴b-4a²b³-a³b²
=a²b(3a²-4b²-ab)
=a²b(3a²-ab-4b²)
=a²b(3a-4b)(a+b)

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