Question

How do you factor y=x3+9x2+27x+27 ?

Answer 1

(x+y)^3= x^3+y^3+3(x^2)y+3x(y^2)

(x+3)^3=x^3+3^3+3(x^2)3+3x(3^2)

=x^3+27+9x^2+27x

given question is y=x^3+9x^2+27x+27

y=(x+3)^3