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### Question 1:
You are asked to write a polynomial in standard form to represent the volume of the rectangular prism. The dimensions of the prism are given as:
- Length = \( x - 1 \)
- Width = \( 2x + 3 \)
- Height = \( x \)

#### Formula for the volume of a rectangular prism:
\[
V = \text{Length} \times \text{Width} \times \text{Height}
\]
Substituting the given expressions for length, width, and height, we get:
\[
V(x) = (x - 1) \times (2x + 3) \times x
\]

Now, let's expand this expression step by step.

1. First, multiply the two binomials \( (x - 1)(2x + 3) \):
   \[
   (x - 1)(2x + 3) = x(2x + 3) - 1(2x + 3)
   = 2x^2 + 3x - 2x - 3 = 2x^2 + x - 3
   \]

2. Now, multiply the result by \( x \) (the height):
   \[
   V(x) = (2x^2 + x - 3) \times x = 2x^3 + x^2 - 3x
   \]

So, the polynomial in standard form representing the volume of the prism is:
\[
V(x) = 2x^3 + x^2 - 3x
\]

---

### Question 2:
You are asked to find the product of \( (3 - x^2)(5 - x) \).

We use the distributive property (FOIL method) to expand the two binomials:
\[
(3 - x^2)(5 - x) = 3(5 - x) - x^2(5 - x)
= 15 - 3x - 5x^2 + x^3
\]

Simplifying the terms, we get:
\[
= x^3 - 5x^2 - 3x + 15
\]

Thus, the product of \( (3 - x^2)(5 - x) \) is:
\[
x^3 - 5x^2 - 3x + 15
\]

---

Would you like further clarification on any step? 

Here are some related questions to explore:
1. How do you factor a cubic polynomial like \( 2x^3 + x^2 - 3x \)?
2. What is the general method for finding the volume of other shapes?
3. Can the volume polynomial \( V(x) = 2x^3 + x^2 - 3x \) have real roots?
4. How does polynomial multiplication differ from factoring?
5. How can you visualize the volume of a rectangular prism with non-integer dimensions?

**Tip:** Always double-check your polynomial expansions by reversing the steps (factoring or using FOIL in reverse) to ensure accuracy.

How do you set up the expression to find the volume of the rectangular prism?

Learn how to set up and expand the polynomial to represent the volume of a rectangular prism with dimensions given as expressions. This problem involves key algebraic concepts such as polynomial expansion and is suitable for students in Grades 8-10.

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