IDNLearn.com: Your trusted source for finding accurate answers. Get accurate and comprehensive answers from our network of experienced professionals.

Match the polynomial on the left with the appropriately factored expression on the right.

[tex]\[
\begin{array}{l}
8x^3 + 27 \\
8x^3 - 27
\end{array}
\][/tex]

[tex]\[
\begin{array}{l}
(2x - 3)\left(4x^2 + 6x + 9\right) \\
(2x + 3)\left(4x^2 + 6x + 9\right) \\
(2x + 3)\left(4x^2 - 6x + 9\right) \\
(2x - 3)\left(4x^2 - 6x + 9\right)
\end{array}
\][/tex]

Drag and drop each polynomial to its corresponding factored form.


Sagot :

To match each polynomial with its appropriately factored expression, we will analyze and detail each polynomial factorization one by one.

### Step-by-Step Factorization Analysis:

#### 1. Factorizing [tex]\(8x^3 + 27\)[/tex]:

Given polynomial: [tex]\(8x^3 + 27\)[/tex]

This polynomial is a sum of cubes. The standard formula for a sum of cubes [tex]\(a^3 + b^3\)[/tex] is:
[tex]\[ a^3 + b^3 = (a + b)(a^2 - ab + b^2) \][/tex]

Here, [tex]\(a = 2x\)[/tex] and [tex]\(b = 3\)[/tex].

Applying the sum of cubes formula, we get:
[tex]\[ (2x)^3 + 3^3 = (2x + 3)((2x)^2 - 2x \cdot 3 + 3^2) \][/tex]

Simplifying the parts inside the parentheses:
[tex]\[ (2x + 3)(4x^2 - 6x + 9) \][/tex]

So, the factored form of [tex]\(8x^3 + 27\)[/tex] is:
[tex]\[ (2x + 3)(4x^2 - 6x + 9) \][/tex]

#### 2. Factorizing [tex]\(8x^3 - 27\)[/tex]:

Given polynomial: [tex]\(8x^3 - 27\)[/tex]

This polynomial is a difference of cubes. The standard formula for a difference of cubes [tex]\(a^3 - b^3\)[/tex] is:
[tex]\[ a^3 - b^3 = (a - b)(a^2 + ab + b^2) \][/tex]

Here, [tex]\(a = 2x\)[/tex] and [tex]\(b = 3\)[/tex].

Applying the difference of cubes formula, we get:
[tex]\[ (2x)^3 - 3^3 = (2x - 3)((2x)^2 + 2x \cdot 3 + 3^2) \][/tex]

Simplifying the parts inside the parentheses:
[tex]\[ (2x - 3)(4x^2 + 6x + 9) \][/tex]

So, the factored form of [tex]\(8x^3 - 27\)[/tex] is:
[tex]\[ (2x - 3)(4x^2 + 6x + 9) \][/tex]

### Matching the Polynomials with Their Factored Forms:

- [tex]\(8x^3 + 27\)[/tex] matches with [tex]\((2x + 3)(4x^2 - 6x + 9)\)[/tex]
- [tex]\(8x^3 - 27\)[/tex] matches with [tex]\((2x - 3)(4x^2 + 6x + 9)\)[/tex]

In summary:

- [tex]\(8 x^3 + 27\)[/tex] → [tex]\((2 x + 3)(4 x^2 - 6 x + 9)\)[/tex]
- [tex]\(8 x^3 - 27\)[/tex] → [tex]\((2 x - 3)(4 x^2 + 6 x + 9)\)[/tex]

These are the correct factorizations for each polynomial.