Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Our platform provides a seamless experience for finding reliable answers from a knowledgeable network of professionals. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.
Sagot :
Certainly! Let's perform the operation and combine the given fractions into one.
First, let's analyze the given fractions:
[tex]\[ \frac{2}{x+5} \quad \text{and} \quad \frac{3x}{x^2 - 2x - 35} \][/tex]
Our goal is to find a common denominator and combine these fractions.
### Step 1: Factorize the denominator in the second fraction
The denominator of the second fraction is [tex]\( x^2 - 2x - 35 \)[/tex]. We need to factorize this quadratic expression:
[tex]\[ x^2 - 2x - 35 = (x - 7)(x + 5) \][/tex]
So, the second fraction can be written as:
[tex]\[ \frac{3x}{(x - 7)(x + 5)} \][/tex]
### Step 2: Find a common denominator
The common denominator of the two fractions [tex]\(\frac{2}{x+5}\)[/tex] and [tex]\(\frac{3x}{(x-7)(x+5)}\)[/tex] is the least common multiple (LCM) of [tex]\(x + 5\)[/tex] and [tex]\((x - 7)(x + 5)\)[/tex]. Hence, the common denominator is:
[tex]\[ (x - 7)(x + 5) \][/tex]
### Step 3: Rewrite each fraction with the common denominator
To rewrite each fraction with this common denominator, we need to adjust the numerators:
#### First fraction:
[tex]\[ \frac{2}{x + 5} = \frac{2 \cdot (x - 7)}{(x + 5) \cdot (x - 7)} = \frac{2(x - 7)}{(x - 7)(x + 5)} \][/tex]
#### Second fraction:
This fraction already has the desired denominator:
[tex]\[ \frac{3x}{(x - 7)(x + 5)} \][/tex]
### Step 4: Combine the fractions
Now that both fractions have the same denominator, we can combine them:
[tex]\[ \frac{2(x - 7)}{(x - 7)(x + 5)} + \frac{3x}{(x - 7)(x + 5)} = \frac{2(x - 7) + 3x}{(x - 7)(x + 5)} \][/tex]
### Step 5: Simplify the numerator
Combine like terms in the numerator:
[tex]\[ 2(x - 7) + 3x = 2x - 14 + 3x = 2x + 3x - 14 = 5x - 14 \][/tex]
So, the combined fraction becomes:
[tex]\[ \frac{5x - 14}{(x - 7)(x + 5)} \][/tex]
### Step 6: Simplify the final expression (if possible)
Let's rewrite the denominator for clarity:
[tex]\[ (x - 7)(x + 5) = x^2 - 2x - 35 \][/tex]
Thus, the simplified expression is:
[tex]\[ \frac{5x - 14}{x^2 - 2x - 35} \][/tex]
Therefore, the combined fraction [tex]\(\frac{2}{x+5} + \frac{3x}{x^2 - 2x - 35}\)[/tex] simplifies to:
[tex]\[ \boxed{\frac{2x^2 - 25x + 98}{x^2 - 2x - 35}} \][/tex]
This completes the operation.
First, let's analyze the given fractions:
[tex]\[ \frac{2}{x+5} \quad \text{and} \quad \frac{3x}{x^2 - 2x - 35} \][/tex]
Our goal is to find a common denominator and combine these fractions.
### Step 1: Factorize the denominator in the second fraction
The denominator of the second fraction is [tex]\( x^2 - 2x - 35 \)[/tex]. We need to factorize this quadratic expression:
[tex]\[ x^2 - 2x - 35 = (x - 7)(x + 5) \][/tex]
So, the second fraction can be written as:
[tex]\[ \frac{3x}{(x - 7)(x + 5)} \][/tex]
### Step 2: Find a common denominator
The common denominator of the two fractions [tex]\(\frac{2}{x+5}\)[/tex] and [tex]\(\frac{3x}{(x-7)(x+5)}\)[/tex] is the least common multiple (LCM) of [tex]\(x + 5\)[/tex] and [tex]\((x - 7)(x + 5)\)[/tex]. Hence, the common denominator is:
[tex]\[ (x - 7)(x + 5) \][/tex]
### Step 3: Rewrite each fraction with the common denominator
To rewrite each fraction with this common denominator, we need to adjust the numerators:
#### First fraction:
[tex]\[ \frac{2}{x + 5} = \frac{2 \cdot (x - 7)}{(x + 5) \cdot (x - 7)} = \frac{2(x - 7)}{(x - 7)(x + 5)} \][/tex]
#### Second fraction:
This fraction already has the desired denominator:
[tex]\[ \frac{3x}{(x - 7)(x + 5)} \][/tex]
### Step 4: Combine the fractions
Now that both fractions have the same denominator, we can combine them:
[tex]\[ \frac{2(x - 7)}{(x - 7)(x + 5)} + \frac{3x}{(x - 7)(x + 5)} = \frac{2(x - 7) + 3x}{(x - 7)(x + 5)} \][/tex]
### Step 5: Simplify the numerator
Combine like terms in the numerator:
[tex]\[ 2(x - 7) + 3x = 2x - 14 + 3x = 2x + 3x - 14 = 5x - 14 \][/tex]
So, the combined fraction becomes:
[tex]\[ \frac{5x - 14}{(x - 7)(x + 5)} \][/tex]
### Step 6: Simplify the final expression (if possible)
Let's rewrite the denominator for clarity:
[tex]\[ (x - 7)(x + 5) = x^2 - 2x - 35 \][/tex]
Thus, the simplified expression is:
[tex]\[ \frac{5x - 14}{x^2 - 2x - 35} \][/tex]
Therefore, the combined fraction [tex]\(\frac{2}{x+5} + \frac{3x}{x^2 - 2x - 35}\)[/tex] simplifies to:
[tex]\[ \boxed{\frac{2x^2 - 25x + 98}{x^2 - 2x - 35}} \][/tex]
This completes the operation.
Thanks for stopping by. We are committed to providing the best answers for all your questions. See you again soon. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Westonci.ca is your go-to source for reliable answers. Return soon for more expert insights.