Answer
$y^4-12y^3+54y^2-108y+81$
Work Step by Step
Use the binomial theorem formula (detailed on page 754) to solve the problem. Be careful in writing each term correctly.
$(y-3)^4$
$1*(y)^4+4*(y)^3*(-3)+6*(y)^2*(-3)^2+4*(y)*(-3)^3+(-3)^4$
$y^4-12y^3+54y^2-108y+81$
