Math Problem Statement

Formulate two (2) real-life problems involving factors of polynomials and solve the problems accurately with complete solutions.

Solution

Your task is to:

  1. Formulate two real-life problems involving the factors of polynomials.
  2. Solve these problems accurately and show the complete solution.

Here are two example problems and their solutions:

Problem 1:

Situation: You are planning to create a rectangular garden, and you know that the area of the garden is represented by the polynomial A(x)=x2+5x+6A(x) = x^2 + 5x + 6, where xx is the width in meters.

Task: Factor the polynomial to determine the possible dimensions of the garden.

Solution:

  1. Factor the polynomial x2+5x+6x^2 + 5x + 6. A(x)=(x+2)(x+3)A(x) = (x + 2)(x + 3)
  2. The factors give the possible dimensions of the garden. So, the width is x+2x + 2 meters and the length is x+3x + 3 meters.

Thus, the dimensions of the garden could be x+2x+2 meters and x+3x+3 meters.


Problem 2:

Situation: A box has a volume that can be represented by the polynomial V(x)=x37x2+10xV(x) = x^3 - 7x^2 + 10x, where xx represents the height of the box.

Task: Factor the polynomial to determine the possible dimensions of the box.

Solution:

  1. Factor the polynomial x37x2+10xx^3 - 7x^2 + 10x. V(x)=x(x27x+10)V(x) = x(x^2 - 7x + 10)
  2. Now, factor x27x+10x^2 - 7x + 10 further: V(x)=x(x5)(x2)V(x) = x(x - 5)(x - 2)
  3. The factors xx, x5x-5, and x2x-2 represent the possible dimensions of the box. So, the height could be xx, the width x5x-5, and the length x2x-2.

Thus, the possible dimensions of the box are xx, x5x-5, and x2x-2.


Would you like more details or have any questions?

Here are 5 questions to expand on these concepts:

  1. How do you determine if a polynomial can be factored easily?
  2. Can every polynomial be factored, or are there exceptions?
  3. What real-life scenarios might involve higher-degree polynomials?
  4. How can factoring help in solving quadratic equations?
  5. What are some common methods for factoring polynomials?

Tip: When factoring polynomials, always check if there’s a common factor across all terms first!

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Math Problem Analysis

Mathematical Concepts

Polynomials
Factoring
Algebra
Real-life Applications

Formulas

Factoring formulas for quadratics and cubic polynomials

Theorems

Zero-product property
Factoring theorem

Suitable Grade Level

Grade 8