IDNLearn.com makes it easy to find precise answers to your specific questions. Discover detailed and accurate answers to your questions from our knowledgeable and dedicated community members.

Perform the operation and simplify.

[tex]\[
\frac{x-3}{2x-8} \cdot \frac{6x^2-96}{x^2-9}
\][/tex]


Sagot :

Let's perform the operation and simplify the given expression step-by-step.

The given fractions are:
[tex]\[ \frac{x-3}{2x-8} \quad \text{and} \quad \frac{6x^2-96}{x^2-9} \][/tex]

### Step 1: Factorize the Numerators and Denominators

1. Factorize [tex]\(6x^2 - 96\)[/tex]:
[tex]\[ 6x^2 - 96 = 6(x^2 - 16) = 6(x - 4)(x + 4) \][/tex]

2. Factorize [tex]\(x^2 - 9\)[/tex]:
[tex]\[ x^2 - 9 = (x - 3)(x + 3) \][/tex]

3. Factorize [tex]\(2x - 8\)[/tex]:
[tex]\[ 2x - 8 = 2(x - 4) \][/tex]

Now, rewrite the original expression with the factorizations applied:
[tex]\[ \frac{x - 3}{2(x - 4)} \cdot \frac{6(x - 4)(x + 4)}{(x - 3)(x + 3)} \][/tex]

### Step 2: Cancel Common Factors

Identify and cancel the common factors from both the numerator and the denominator.

In the numerator and the denominator, we have:
[tex]\[ \frac{(x - 3) \cdot 6(x - 4)(x + 4)}{2(x - 4) \cdot (x - 3)(x + 3)} \][/tex]

The common factors [tex]\((x - 3)\)[/tex] and [tex]\((x - 4)\)[/tex] can be canceled out:
[tex]\[ \frac{6(x + 4)}{2(x + 3)} \][/tex]

### Step 3: Simplify the Remaining Expression

Further simplify the fraction:
[tex]\[ \frac{6(x + 4)}{2(x + 3)} = \frac{6}{2} \cdot \frac{(x + 4)}{(x + 3)} = 3 \cdot \frac{(x + 4)}{(x + 3)} \][/tex]

Thus, the simplified result is:
[tex]\[ \frac{3(x + 4)}{(x + 3)} \][/tex]

Hence, the detailed, step-by-step solution to the given problem is:
[tex]\[ \frac{3(x + 4)}{(x + 3)} \][/tex]