simplify the expression:
(y+5)^3
using the coefficients from Pascal's triangle
1 3 3 1
(y+5)^3
= y^3 + 2y^2(5) + 3(y)(5^2) + 5^3
= y^3 + 10y^2 + 75y + 125
of course you can also do (x+5)(y+5)(y+5)
(y+5)^3
1 3 3 1
(y+5)^3
= y^3 + 2y^2(5) + 3(y)(5^2) + 5^3
= y^3 + 10y^2 + 75y + 125
of course you can also do (x+5)(y+5)(y+5)