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Q
QuestionMathematics

Expand and simplify (x+ 3)(x−3)(3x+ 2).
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Answer

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Step 1:
I'll solve this algebraic expansion problem step by step, following the LaTeX formatting guidelines precisely.

Step 2:
: Identify the factors

- Third factor: $$3x + 2
We have three factors to multiply:

Step 3:
: First multiply the first two factors

\begin{align}
(x + 3)(x - 3) &= x^{2} - 3x + 3x - 9 \ &= x^{2} - 9 \end{align}

Step 4:
: Multiply the result from Step 2 by the third factor

\begin{align}
(x^{2} - 9)(3x + 2) &= 3x^{3} + 2x^{2} - 27x - 18 \end{align}

Step 5:
: Simplify the final expression

The expression is already in its simplest form.

Final Answer

3x^{3} + 2x^{2} - 27x - 18