Learn how to solve problems step by step online. Expand the expression (z+3)(z^2-3z+9). Multiply the single term z^2-3z+9 by each term of the polynomial \left(z+3\right). Multiply the single term z by each term of the polynomial \left(z^2-3z+9\right). When multiplying exponents with same base you can add the exponents: z^2z. When multiplying two powers that have the same base (z), you can add the exponents.

Expand the expression (z+3)(z^2-3z+9)