Multiply. $$ (5 x+8)\left(8 x^{2}+6 x+4\right) $$ The answer is $$ \square $$. (Simplify your answer.)

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To multiply and simplify the expression $$ (5x + 8)\left(8x^{2} + 6x + 4\right) $$, follow these steps:

1. **Distribute Each Term:**

$$
\begin{align*}
(5x + 8)(8x^{2} + 6x + 4) &= 5x \cdot 8x^{2} + 5x \cdot 6x + 5x \cdot 4 \
&\quad + 8 \cdot 8x^{2} + 8 \cdot 6x + 8 \cdot 4
\end{align*}
$$

2. **Perform the Multiplications:**

$$
\begin{align*}
&= 40x^{3} + 30x^{2} + 20x + 64x^{2} + 48x + 32
\end{align*}
$$

3. **Combine Like Terms:**

$$
\begin{align*}
40x^{3} &+ (30x^{2} + 64x^{2}) + (20x + 48x) + 32 \
&= 40x^{3} + 94x^{2} + 68x + 32
\end{align*}
$$

**Final Simplified Answer:**

$$
40x^{3} + 94x^{2} + 68x + 32
$$

$$\boxed{40x^{3} + 94x^{2} + 68x + 32}$$
$$40x^{3} + 94x^{2} + 68x + 32$$

Multiply. \( (5 x+8)\left(8 x^{2}+6 x+4\right) \) The answer is \( \square \). (Simplify your answer.)

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