#### Answer

Standard form: $=b^3-6b^2+9b$
Degree = 3
Number of terms = 3
Thus, the polynomial is a cubic trinomial.

#### Work Step by Step

Square the binomial to have
$b(b^2-6b+9)$.
Distribute $b$ to have
$\\b^3-6b^2+9b$.
The polynomial has degree 3 and has three terms.
Thus, it is a cubic trinomial.