3x mũ 2 x (4 x mũ 3 trừ 7 x mũ 2 + 5x - 1)
-2x mũ 4 .(-6x mũ 2 + 7x - 5)
(2x + 3) (3x - 1)
(4x + 1) (4x - 1)
(2x + 3) (4x mũ 2 - 6x + 9)
(9x mũ 4 - 7x mũ 3 + 6 x mũ 2) chia 3 x mũ 2
(1/2x mũ 5+ 6X mũ 4 trừ 3 x mũ 2) chia 2x
(2x mũ 2 +5x + 2):(2x + 1)
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