Math Problem Statement

Write a polynomial that describes the amount of space in a larger box that must be filled with Styrofoam chips. Factor the polynomial.

Solution

To address the problem described in the image:

We are tasked with finding:

  1. A polynomial that represents the amount of space in the larger box that must be filled with Styrofoam chips.
  2. Factoring the polynomial.

Step 1: Define Volumes of the Boxes

  • Volume of the larger box: This is a cube with dimensions 12 inches on each side.

    The formula for the volume of a cube is: V=side3V = \text{side}^3 So, the volume of the larger box is: Vlarger=123=1728 cubic inches.V_{\text{larger}} = 12^3 = 1728 \text{ cubic inches.}

  • Volume of the smaller box: The smaller box has dimensions x×x×xx \times x \times x.

    The volume of the smaller box is: Vsmaller=x3 cubic inches.V_{\text{smaller}} = x^3 \text{ cubic inches.}

Step 2: Amount of Space for Styrofoam Chips

The amount of space that must be filled with Styrofoam chips is the difference between the volumes of the larger and smaller boxes: Space for Styrofoam=VlargerVsmaller=1728x3\text{Space for Styrofoam} = V_{\text{larger}} - V_{\text{smaller}} = 1728 - x^3 Thus, the polynomial that describes the space for the Styrofoam chips is: P(x)=1728x3P(x) = 1728 - x^3

Step 3: Factor the Polynomial

The polynomial P(x)=1728x3P(x) = 1728 - x^3 is a difference of cubes. The difference of cubes can be factored using the formula: a3b3=(ab)(a2+ab+b2)a^3 - b^3 = (a - b)(a^2 + ab + b^2) In this case, a=12a = 12 and b=xb = x. Applying the formula, we get: P(x)=(12x)(122+12x+x2)P(x) = (12 - x)(12^2 + 12x + x^2) Simplifying further: P(x)=(12x)(144+12x+x2)P(x) = (12 - x)(144 + 12x + x^2)

Thus, the factored form of the polynomial is: P(x)=(12x)(144+12x+x2)P(x) = (12 - x)(144 + 12x + x^2)

Final Answer:

  1. The polynomial that describes the amount of space to be filled with Styrofoam is P(x)=1728x3P(x) = 1728 - x^3.
  2. The factored form of the polynomial is (12x)(144+12x+x2)(12 - x)(144 + 12x + x^2).

Would you like any further explanation, or do you have any specific questions?

Relative Questions:

  1. What is the general formula for the volume of a cube?
  2. How do you calculate the difference between volumes of two objects?
  3. What is the difference between factoring a polynomial and expanding it?
  4. How is the difference of cubes factored in algebra?
  5. How can factoring help in solving real-life packaging problems?

Tip:

Remember that recognizing special factoring patterns, like the difference of cubes, can simplify complex polynomial expressions.

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Math Problem Analysis

Mathematical Concepts

Algebra
Polynomials
Volume Calculation
Factoring

Formulas

Volume of a cube: V = side^3
Difference of cubes: a^3 - b^3 = (a - b)(a^2 + ab + b^2)

Theorems

Difference of Cubes Theorem

Suitable Grade Level

Grades 9-12