因式分解。要具体过程
\u56e0\u5f0f\u5206\u89e3\uff08\u8981\u8fc7\u7a0b\uff0c\u5177\u4f53\u4e00\u70b9\uff09=a⁴-20a²+100-a²
=\uff08a²-10\uff09²-a²
=\uff08a²+a-10\uff09\uff08a²-a-10\uff09
绛旓細鍒嗚В涓鑸楠わ細1銆佸鏋滃椤瑰紡鐨勯椤逛负璐燂紝搴斿厛鎻愬彇璐熷彿锛涜繖閲岀殑鈥滆礋鈥濓紝鎸団滆礋鍙封濄傚鏋滃椤瑰紡鐨勭涓椤规槸璐熺殑锛屼竴鑸鎻愬嚭璐熷彿锛屼娇鎷彿鍐呯涓椤圭郴鏁版槸姝ｇ殑銆2銆佸鏋滃椤瑰紡鐨勫悇椤瑰惈鏈夊叕鍥犲紡锛岄偅涔堝厛鎻愬彇杩欎釜鍏洜寮忥紝鍐嶈繘涓姝鍒嗚В鍥犲紡锛涜娉ㄦ剰锛氬椤瑰紡鐨勬煇涓暣椤规槸鍏洜寮忔椂锛屽厛鎻愬嚭杩欎釜鍏洜寮忓悗锛屾嫭鍙峰唴...
绛旓細鎴戠殑 鍥犲紡鍒嗚В銆瑕佸叿浣撹繃绋 鎴戞潵绛 1涓洖绛 #璇濋# 灞呭闃茬柅鑷晳鎵嬪唽 鐩熸垬绁 2015-01-18 路 TA鑾峰緱瓒呰繃174涓禐 鐭ラ亾绛斾富 鍥炵瓟閲:618 閲囩撼鐜:0% 甯姪鐨勪汉:115涓 鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 鍏虫敞 灞曞紑鍏ㄩ儴 杩界瓟 璇烽噰绾炽 鏈洖绛旂敱鎻愰棶鑰呮帹鑽 宸茶禐杩 宸茶俯杩< 浣犲杩欎釜鍥炵瓟鐨勮瘎浠锋槸? 璇勮 ...
绛旓細鈶㈡瘡涓洜寮忓繀椤绘槸鏁村紡,涓旀瘡涓洜寮忕殑娆℃暟閮藉繀椤讳綆浜庡師鏉ュ椤瑰紡鐨勬鏁銆傗懀鍒嗚В鍥犲紡蹇呴』鍒嗚В鍒版瘡涓椤瑰紡鍥犲紡閮戒笉鑳藉啀鍒嗚В涓烘銆傛敞:鍒嗚В鍥犲紡鍓嶅厛瑕佹壘鍒板叕鍥犲紡,鍦ㄧ‘瀹氬叕鍥犲紡鍓,搴斾粠绯绘暟鍜屽洜寮忎袱涓柟闈㈣冭檻銆2.鎻愬叕鍥犲紡娉曞熀鏈楠:(1)鎵惧嚭鍏洜寮(2)鎻愬叕鍥犲紡骞剁‘瀹氬彟涓涓洜寮忊憼绗竴姝ユ壘鍏洜寮忓彲鎸夌収纭畾鍏洜寮忕殑鏂规硶鍏...
绛旓細3銆佸緟瀹氱郴鏁版硶 渚嬪锛屽皢ax2+bx+c鍥犲紡鍒嗚В锛屽彲浠x2+bx+c=0锛屽啀瑙ｈ繖涓柟绋銆傚鏋滄柟绋嬫棤瑙ｏ紝鍒欏師寮忔棤娉曞洜寮忓垎瑙ｏ紱濡傛灉鏂圭▼鏈変袱涓浉鍚岀殑瀹炴暟鏍癸紙璁句负m锛夛紝鍒欏師寮忓彲浠ュ垎瑙ｄ负锛坸-m锛2濡傛灉鏂圭▼鏈変袱涓笉鐩哥瓑鐨勫疄鏁版牴锛堝垎鍒涓簃锛宯锛夛紝鍒欏師寮忓彲浠ュ垎瑙ｄ负(x-m)(x-n)銆4銆佸崄瀛楃浉涔樻硶 鍗佸瓧鍒嗚В娉...
绛旓細鍥犲紡鍒嗚В,鍏ㄩ儴瑕佽缁嗚繃绋銆 鎴戞潵绛 4涓洖绛 #鐑# 濡備綍缂撹В鐒﹁檻鎯呯华? 鍕掓潨楣666 2016-04-18 路 TA鑾峰緱瓒呰繃165涓禐 鐭ラ亾灏忔湁寤烘爲绛斾富 鍥炵瓟閲:245 閲囩撼鐜:0% 甯姪鐨勪汉:188涓 鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 鍏虫敞 灞曞紑鍏ㄩ儴 鏇村杩介棶杩界瓟 杩界瓟 缁х画鍋 鏈洖绛旂敱鎻愰棶鑰呮帹鑽 宸茶禐杩 宸茶俯杩< ...
绛旓細鍥犲紡鍒嗚В 瑕佽繃绋 鎴戞潵绛 5涓洖绛 #璇濋# 鎵撳伐浜鐨鈥滄儴鈥濊皝鏄姜榄佺ジ棣?mike 2015-12-07 路 鐭ラ亾鍚堜紮浜烘暀鑲茶瀹 mike 鐭ラ亾鍚堜紮浜烘暀鑲茶瀹 閲囩撼鏁:14973 鑾疯禐鏁:41571 鎷呬换澶氬勾楂樹笁鏁欏宸ヤ綔銆 鍚慣A鎻愰棶 绉佷俊TA 鍏虫敞 灞曞紑鍏ㄩ儴 杩界瓟 閲囩撼,璋㈣阿 鏈洖绛旂敱鎻愰棶鑰呮帹鑽 宸茶禐杩 宸茶俯杩< 浣犲杩欎釜鍥炵瓟...
绛旓細=(x+3鈭2/2)^2-(鈭26/2)^2 =[(x+3鈭2/2)+鈭26/2][(x+3鈭2/2)-鈭26/2]锛漑x+鈭2(3+鈭13)/2][x+鈭2(3-鈭13)/2]2)2x^2-4xy-3y^2 =2x^2-4xy+2y^2]-5y^2 =[鈭2(x-y)]^2-(鈭5y)^2 =[鈭2(x-y)+鈭5y][鈭2(x-y)-鈭5y]=[鈭2x+(鈭5-鈭2)y]...
绛旓細鍥犲紡鍒嗚В,鍏ㄩ儴鍏蜂綋杩囩▼ 鎴戞潵绛 4涓洖绛 #鐑# 鑱屽満涓婂彈濮斿眻瑕佷笉瑕佷负鑷繁瑙ｉ噴? 鍖垮悕鐢ㄦ埛 2014-08-10 灞曞紑鍏ㄩ儴 宸茶禐杩 宸茶俯杩< 浣犲杩欎釜鍥炵瓟鐨勮瘎浠锋槸? 璇勮 鏀惰捣 鍖垮悕鐢ㄦ埛 2014-08-10 灞曞紑鍏ㄩ儴 宸茶禐杩 宸茶俯杩< 浣犲杩欎釜鍥炵瓟鐨勮瘎浠锋槸? 璇勮 鏀惰捣 鍖垮悕鐢ㄦ埛 2014-08-10 灞曞紑鍏ㄩ儴 宸...
绛旓細1.ab³-4ab=ab(b²-4)=ab(b+2)(b-2)2.3x²y+12xy²+12y³=3y(x²+4xy+4y²)=3y(x+2y)²3.x³y-2x²y²+xy³=xy(x²-2xy+y²)=xy(x-y)²4.12a⁴b²-27a²b⁴...
绛旓細鍥炵瓟锛1銆佸師寮=-a(a²-2ab+b²)=-a(a-b)² 2銆佸師寮=(x+2y)(x-2y)+(x-2y) =(x-2y)(x+2y+1)
