(b-5)^6= menggunakan segitiga pascal

(b−5)^6
=1b^6+(6.-5)b^5+(15.(-5)^2))b^4+(20.(-5)^3))b^3+(15.(-5)^4)b^2+(6.(-5)^5)b+(6.(-5)^6)
=b^6−30b^5+375b^4−2500b^3+9375b^2−18750b+1562