# How do you factor #y= x^3 + 9x^2 + 27x + 27# ?

##### 1 Answer

Dec 2, 2015

#### Answer:

#### Explanation:

Notice that

So try

In general

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

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