해법
확장 (2x5+x1)24
해법
16777216x120+201326592x114+1157627904x108+4244635648x102+11142168576x96+22284337152x90+35283533824x84+45364543488x78+48199827456x72+42844291072x66+32133218304x60+20448411648x54+11076222976x48+5112102912x42+2008326144x36+669442048x30+188280576x24+44301312x18+8614144x12+1360128x6+170016+x616192+x121104+x1848+x241
솔루션 단계
(2x5+x1)24
이항 정리 적용: (a+b)n=i=0∑n(in)a(n−i)bia=2x5,b=x1
=i=0∑24(i24)(2x5)(24−i)(x1)i
합계 확장
=0!(24−0)!24!(2x5)24(x1)0+1!(24−1)!24!(2x5)23(x1)1+2!(24−2)!24!(2x5)22(x1)2+3!(24−3)!24!(2x5)21(x1)3+4!(24−4)!24!(2x5)20(x1)4+5!(24−5)!24!(2x5)19(x1)5+6!(24−6)!24!(2x5)18(x1)6+7!(24−7)!24!(2x5)17(x1)7+8!(24−8)!24!(2x5)16(x1)8+9!(24−9)!24!(2x5)15(x1)9+10!(24−10)!24!(2x5)14(x1)10+11!(24−11)!24!(2x5)13(x1)11+12!(24−12)!24!(2x5)12(x1)12+13!(24−13)!24!(2x5)11(x1)13+14!(24−14)!24!(2x5)10(x1)14+15!(24−15)!24!(2x5)9(x1)15+16!(24−16)!24!(2x5)8(x1)16+17!(24−17)!24!(2x5)7(x1)17+18!(24−18)!24!(2x5)6(x1)18+19!(24−19)!24!(2x5)5(x1)19+20!(24−20)!24!(2x5)4(x1)20+21!(24−21)!24!(2x5)3(x1)21+22!(24−22)!24!(2x5)2(x1)22+23!(24−23)!24!(2x5)1(x1)23+24!(24−24)!24!(2x5)0(x1)24
0!(24−0)!24!(2x5)24(x1)0간소화하다 :16777216x120
1!(24−1)!24!(2x5)23(x1)1간소화하다 :201326592x114
2!(24−2)!24!(2x5)22(x1)2간소화하다 :1157627904x108
3!(24−3)!24!(2x5)21(x1)3간소화하다 :4244635648x102
4!(24−4)!24!(2x5)20(x1)4간소화하다 :11142168576x96
5!(24−5)!24!(2x5)19(x1)5간소화하다 :22284337152x90
6!(24−6)!24!(2x5)18(x1)6간소화하다 :35283533824x84
7!(24−7)!24!(2x5)17(x1)7간소화하다 :45364543488x78
8!(24−8)!24!(2x5)16(x1)8간소화하다 :48199827456x72
9!(24−9)!24!(2x5)15(x1)9간소화하다 :42844291072x66
10!(24−10)!24!(2x5)14(x1)10간소화하다 :32133218304x60
11!(24−11)!24!(2x5)13(x1)11간소화하다 :20448411648x54
12!(24−12)!24!(2x5)12(x1)12간소화하다 :11076222976x48
13!(24−13)!24!(2x5)11(x1)13간소화하다 :5112102912x42
14!(24−14)!24!(2x5)10(x1)14간소화하다 :2008326144x36
15!(24−15)!24!(2x5)9(x1)15간소화하다 :669442048x30
16!(24−16)!24!(2x5)8(x1)16간소화하다 :188280576x24
17!(24−17)!24!(2x5)7(x1)17간소화하다 :44301312x18
18!(24−18)!24!(2x5)6(x1)18간소화하다 :8614144x12
19!(24−19)!24!(2x5)5(x1)19간소화하다 :1360128x6
20!(24−20)!24!(2x5)4(x1)20간소화하다 :170016
21!(24−21)!24!(2x5)3(x1)21간소화하다 :x616192
22!(24−22)!24!(2x5)2(x1)22간소화하다 :x121104
23!(24−23)!24!(2x5)1(x1)23간소화하다 :x1848
24!(24−24)!24!(2x5)0(x1)24간소화하다 :x241
=16777216x120+201326592x114+1157627904x108+4244635648x102+11142168576x96+22284337152x90+35283533824x84+45364543488x78+48199827456x72+42844291072x66+32133218304x60+20448411648x54+11076222976x48+5112102912x42+2008326144x36+669442048x30+188280576x24+44301312x18+8614144x12+1360128x6+170016+x616192+x121104+x1848+x241