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9. 下列哪一個多項式是6x2-9x與4x2-12x+9的公因式?(A) 2x2 (B) 2x-3 (C) x (D) 2x+3
問題詳情
9. 下列哪一個多項式是6x2-9x與4x2-12x+9的公因式?
(A) 2x2
(B) 2x-3
(C) x
(D) 2x+3
參考答案
答案:B
難度:
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用户評論
【
曾嘉禾
】評論
6x2-9x = 3x(2x-3)4x2-12x+9 = (2x-3)2公因式為:2x-3
上一篇 :
8. 已知 ( 4x-3 ) ( x-3 )=4x2-15x+9,試問下列哪一個式子不是 4x2-15x+9的因式?(A) 3-4x (B) 4x+3 (C) x-3 (D) 4x2-15x+9
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10. 為響應環保綠色能源新觀念,中興國中計畫於信義樓頂樓鋪設太陽能面板以提供能源。已知頂樓為面積( 35x2+13x-12 )平方公尺的長方形空地,若於四周須留x公尺寬的走道,其餘鋪滿太陽能面板,請
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