(x-1)的平方怎么分解
(X-1)�0�5=(X-1)(X-1)=x�0�5-x-x+1=X�0�5-2X+1 你把这个公式理解之后背下来了,以后这种题目都会做了的。专业团队真诚为你答题O(∩_∩)O(X-1)�0�5=(X-1)(X-1)=x�0�5-x-x+1=X�0�5-2X+1
(X-1)�0�5=X�0�5-2X+1
x的平方-2x十1
X平方-2X+1
绛旓細鍥炵瓟锛x-1=卤2銆傗憽x-2=卤鈭3銆傗憿鎴戝啀鎯虫兂銆傗懀 -9(x-5)=2
绛旓細锛坸-1锛²=8 x-1=卤2鈭2 x1=1+2鈭2 x2=1-2鈭2
绛旓細(x-1)²=-2 鍙互鐩存帴鐢ㄥ紑骞虫柟娉曡В銆備絾杩欎竴棰樼瓟妗堟槸鏃犺В锛屽洜涓-2<0锛岃屼换鎰忔暟鐨勫钩鏂 閮芥槸闈炶礋鏁帮紝鎵浠ユ棰樼瓟妗堟槸鏃犺В
绛旓細锛坸锛1锛²锛嶏紙y锛2锛²瑙o細涓嶅Θ璁 x锛1锛漨 y锛2锛漬 鍘熷紡锛漨²锛峮²锛濓紙m锛媙锛夛紙m锛峮锛夛紳锛坸锛媦锛1锛夛紙x锛峺锛3锛夊洜寮鍒嗚В锛氾紙x²锛5x锛9锛夛紙x²锛3x锛7锛夛紞3锛4x锛1锛²瑙o細 璁総锛漑锛坸²锛5x锛9锛夛紜锛坸²锛3x锛7锛塢...
绛旓細2(x-1)^2-(x-1)=0 (x-1)(2x-2-1)=0 (x-1)(2x-3)=0 x=1 鎴 x=3/2 甯屾湜鑳藉府浣犲繖锛屼笉鎳傝杩介棶锛屾噦浜嗚閲囩撼锛岃阿璋
绛旓細(X-1)骞虫柟-9=(X-1+3)(X-1-3)=(X+2)(X-4)
绛旓細(x-1)²-9 =(x-1)²-3²=[(x-1)+3][(x-1)-3]=(x+2)(x-4)寰堥珮鍏翠负鎮ㄨВ绛旓紝绁濅綘瀛︿範杩涙锛併恡he 1900銆戝洟闃熶负鎮ㄧ瓟棰樸傛湁涓嶆槑鐧界殑鍙互杩介棶锛佸鏋滄偍璁ゅ彲鎴戠殑鍥炵瓟銆傝鐐瑰嚮涓嬮潰鐨勩愰変负婊℃剰鍥炵瓟銆戞寜閽傚鏋滄湁鍏朵粬闂璇峰彟鍙戞垨鐐瑰嚮鍚戞垜姹傚姪锛岀瓟棰樹笉鏄擄紝璇疯皡瑙o紝璋 ...
绛旓細锛坸-1锛^2=4锛屼袱杈瑰悓鏃跺紑鏂瑰緱 x-1=2锛岃В寰梮=3
绛旓細x^2-1 锛濓紙x+1锛锛坸-1锛鎵浠^2-1鍒嗚В鍥犲紡鍚庢槸锛坸+1锛夛紙x-1锛
绛旓細鍥炵瓟锛(x 1)*(x-1) =x骞虫柟 x-x-1 =x骞虫柟-1 绛夊紡鎬ц川鍙嶄箣鎴愮珛