因式分解之三分组分解法答案

0 3 分组分解法 例题1 ： ⑴)1)(1()1()1(1yxyyxyxxy ⑵)15)(3()3()3(531552223xxxxxxxx ⑶)3)(7()7(3)7(21372xyxyxyxxxxyyx ⑷6236)23(6)2)(1(232xxxxxxxxx )2)(3()3(2)3(22xxxxx ⑸)()()()1(222222axbaxaxxbxaababxbaxxab ))((baxax ⑹)152)(2()2(15)2(2304152nmababnabmanambnbm ⑺)3)(()(3)(332abababaababaa ⑻)31)(2()2(3)2(6322ababaabaababa ⑼)32)(53()35(3)53(29101562bxaxxabaxxbxaxabx ⑽)3)(32()32(3)32(96322yxxxyxxyxyxx 例题2 ： ⑴)35)(3()3(3)3(5931552baamabmaambmabmamma ⑵)1)(1()]1()1([22234xxxxxxxxxxx ⑶)1(3)1(3333342222234234xxxxxxxxxxxxxx )3)(1(22xxx ⑷)1)(()()()(2222xxbababaxbaxbaaxbxbxax ⑸xyyxyxyxx22))(1(3222 )1)(()()(22222222222222343222234xyxyxyxyxyxyxxyxyxyxyxxxyyxyxyxyxyxx ⑹))(1()1()1(22222baxxxxbxxababxaxbxax ⑺)1()1()1(2222yyyxyxyyxxyyxx )1)(1(2xxy ⑻)12(5)12(5510)12(222222xyyxxyyx )62)(12()512)(12(2222xyxyxyxy ⑼8442284622234234xxxxxxxxx )4)(22()22(4)22(22222xxxxxxxx ⑽)2)(()(2)(222yxcbacbaycbaxcybxaycxbyax 例题3 ： ⑴)1)(1()1()1(2bdacacbdaccbdacabcdc ⑵)2)(1()1(2)1(222322232345aaaaaaaaaaaaa ⑶)4)(2()5)(3()5)(4()3)(2(yxyxyxyxyxyxyxyx ⑷)1)(1()]1()1([4445xxaxxxaaaxaxax ⑸))(()()(2baayxayxbayxaabbybxaayax ⑹)13)(3()3()3)(3(3922yxyxyxyxyxyyxx ⑺))(()(222222zyxzyxzyxyzzyx ⑻)1()1()1)(1()1()1(122223...