해법
확장 (5−3244140625x)17
해법
517−41503906253x+515⋅136(3244140625x)2−17000x+11900x3244140625x−324414062526188x3x2+122070312512376x2−6103515625324414062519448x23x+6103515625324414062524862x23x2−5274862x3+781252⋅31253324414062519448x33x−1562553244140625212376x33x2+5436188x4−31257⋅2543244140625476x43x+6251132441406252136x43x2−2529136x5+559324414062517x53x−2441406255x5(3244140625x)2
솔루션 단계
(5−3244140625x)17
이항 정리 적용: (a+b)n=i=0∑n(in)a(n−i)bia=5,b=−3244140625x
=i=0∑17(i17)⋅5(17−i)(−3244140625x)i
합계 확장
=0!(17−0)!17!⋅517(−3244140625x)0+1!(17−1)!17!⋅516(−3244140625x)1+2!(17−2)!17!⋅515(−3244140625x)2+3!(17−3)!17!⋅514(−3244140625x)3+4!(17−4)!17!⋅513(−3244140625x)4+5!(17−5)!17!⋅512(−3244140625x)5+6!(17−6)!17!⋅511(−3244140625x)6+7!(17−7)!17!⋅510(−3244140625x)7+8!(17−8)!17!⋅59(−3244140625x)8+9!(17−9)!17!⋅58(−3244140625x)9+10!(17−10)!17!⋅57(−3244140625x)10+11!(17−11)!17!⋅56(−3244140625x)11+12!(17−12)!17!⋅55(−3244140625x)12+13!(17−13)!17!⋅54(−3244140625x)13+14!(17−14)!17!⋅53(−3244140625x)14+15!(17−15)!17!⋅52(−3244140625x)15+16!(17−16)!17!⋅51(−3244140625x)16+17!(17−17)!17!⋅50(−3244140625x)17
0!(17−0)!17!⋅517(−3244140625x)0간소화하다 :517
1!(17−1)!17!⋅516(−3244140625x)1간소화하다 :−3244140625516⋅173x
2!(17−2)!17!⋅515(−3244140625x)2간소화하다 :515⋅136(3244140625x)2
3!(17−3)!17!⋅514(−3244140625x)3간소화하다 :−17000x
4!(17−4)!17!⋅513(−3244140625x)4간소화하다 :513⋅2380(3244140625x)4
5!(17−5)!17!⋅512(−3244140625x)5간소화하다 :−1510742187500(3244140625x)5
6!(17−6)!17!⋅511(−3244140625x)6간소화하다 :2441406252604296875000x2
7!(17−7)!17!⋅510(−3244140625x)7간소화하다 :−189921875000(3244140625x)7
8!(17−8)!17!⋅59(−3244140625x)8간소화하다 :47480468750(3244140625x)8
9!(17−9)!17!⋅58(−3244140625x)9간소화하다 :−24414062539496093750x3
10!(17−10)!17!⋅57(−3244140625x)10간소화하다 :1519375000(3244140625x)10
11!(17−11)!17!⋅56(−3244140625x)11간소화하다 :−193375000(3244140625x)11
12!(17−12)!17!⋅55(−3244140625x)12간소화하다 :244140625419337500x4
13!(17−13)!17!⋅54(−3244140625x)13간소화하다 :−1487500(3244140625x)13
14!(17−14)!17!⋅53(−3244140625x)14간소화하다 :85000(3244140625x)14
15!(17−15)!17!⋅52(−3244140625x)15간소화하다 :−24414062553400x5
16!(17−16)!17!⋅51(−3244140625x)16간소화하다 :85(3244140625x)16
17!(17−17)!17!⋅50(−3244140625x)17간소화하다 :−(3244140625x)17
=517−3244140625516⋅173x+515⋅136(3244140625x)2−17000x+513⋅2380(3244140625x)4−1510742187500(3244140625x)5+2441406252604296875000x2−189921875000(3244140625x)7+47480468750(3244140625x)8−24414062539496093750x3+1519375000(3244140625x)10−193375000(3244140625x)11+244140625419337500x4−1487500(3244140625x)13+85000(3244140625x)14−24414062553400x5+85(3244140625x)16−(3244140625x)17
517−3244140625516⋅173x+515⋅136(3244140625x)2−17000x+513⋅2380(3244140625x)4−1510742187500(3244140625x)5+2441406252604296875000x2−189921875000(3244140625x)7+47480468750(3244140625x)8−24414062539496093750x3+1519375000(3244140625x)10−193375000(3244140625x)11+244140625419337500x4−1487500(3244140625x)13+85000(3244140625x)14−24414062553400x5+85(3244140625x)16−(3244140625x)17간소화하다 :517−41503906253x+515⋅136(3244140625x)2−17000x+11900x3244140625x−324414062526188x3x2+122070312512376x2−6103515625324414062519448x23x+6103515625324414062524862x23x2−5274862x3+781252⋅31253324414062519448x33x−1562553244140625212376x33x2+5436188x4−31257⋅2543244140625476x43x+6251132441406252136x43x2−2529136x5+559324414062517x53x−2441406255x5(3244140625x)2
=517−41503906253x+515⋅136(3244140625x)2−17000x+11900x3244140625x−324414062526188x3x2+122070312512376x2−6103515625324414062519448x23x+6103515625324414062524862x23x2−5274862x3+781252⋅31253324414062519448x33x−1562553244140625212376x33x2+5436188x4−31257⋅2543244140625476x43x+6251132441406252136x43x2−2529136x5+559324414062517x53x−2441406255x5(3244140625x)2