Answer
$x^3+3x^2+3x+1$
Work Step by Step
Use special formula for the perfect cubes.
$(x+a)^3=x^3+3ax^2+3a^2x+a^3$
With $a=1$, substitute $1$ to $a$ in the formula above to obtain:
$(x+1)^3=x^3+3(1)x^2+3(1)^2x+(1)^3$
Simplify.
$(x+1)^3=x^3+3x^2+3x+1$
Hence, the single polynomial answer in standard form is $x^3+3x^2+3x+1$.
