(1+x)^5 = C5,0*1^5*x^0 + C5,1*1^4*x + C5,2*1^3*x^2 + C5,3*1^2*x^3 + C5,4*1*x^4 + C5,5*1^0*x^5 = 1 + 5x + 10x^2 + 10x^3 + 5x^4 + x^5
2^5 = (1+1)^5 = C5,0*1^5 + C5,1*1^4*1 + C5,2*1^3*1^2 + C5,3*1^2*1^3 + C5,4*1*1^4 + C5,5*1^5 = C5,0 + C5,1 + ... + C5,5