練習題庫/gsat・難度 5社區中庭工程圖上，兩個正方形區域的邊長分別標為 4x4x4x 公尺與 x2−y2+4x^2-y^2+4x2−y2+4 公尺。前者面積減去後者面積所得代數式的完全因式分解為何？(A)(x+y+2)(x−y+2)(x+y−2)(x−y−2)(x+y+2)(x-y+2)(x+y-2)(x-y-2)(x+y+2)(x−y+2)(x+y−2)(x−y−2)(B)(x+y+2)2(x−y+2)2(x+y+2)^2(x-y+2)^2(x+y+2)2(x−y+2)2(C)(x+y+2)(x−y−2)(x+y−2)(−x+y+2)(x+y+2)(x-y-2)(x+y-2)(-x+y+2)(x+y+2)(x−y−2)(x+y−2)(−x+y+2)(D)(x+y+2)(x−y+2)(x+y−2)(−x+y−2)(x+y+2)(x-y+2)(x+y-2)(-x+y-2)(x+y+2)(x−y+2)(x+y−2)(−x+y−2)(E)(x+y+2)(x−y+2)(x+y−2)(−x+y+2)(x+y+2)(x-y+2)(x+y-2)(-x+y+2)(x+y+2)(x−y+2)(x+y−2)(−x+y+2)登入後即可作答並查看完整詳解（每日免費 5 題）。