Get the most out of your questions with IDNLearn.com's extensive resources. Explore thousands of verified answers from experts and find the solutions you need, no matter the topic.
Sagot :
Let's perform the indicated operation and simplify the result step-by-step. We'll start by simplifying the numerator and the denominator separately and then combine them.
Step 1: Simplify the Numerator
The numerator is given by:
[tex]\[ \frac{x-8}{x+8} + \frac{x-1}{x+1} \][/tex]
To add these fractions, we need a common denominator. The common denominator for [tex]\( x+8 \)[/tex] and [tex]\( x+1 \)[/tex] is [tex]\((x+8)(x+1)\)[/tex]:
[tex]\[ \frac{x-8}{x+8} + \frac{x-1}{x+1} = \frac{(x-8)(x+1) + (x-1)(x+8)}{(x+8)(x+1)} \][/tex]
Now, expand and simplify the numerators:
[tex]\[ (x-8)(x+1) = x^2 + x - 8x - 8 = x^2 - 7x - 8 \][/tex]
[tex]\[ (x-1)(x+8) = x^2 + 8x - x - 8 = x^2 + 7x - 8 \][/tex]
Add these results:
[tex]\[ \frac{x^2 - 7x - 8 + x^2 + 7x - 8}{(x+8)(x+1)} = \frac{2x^2 - 16}{(x+8)(x+1)} \][/tex]
Factor the numerator:
[tex]\[ 2x^2 - 16 = 2(x^2 - 8) = 2(x - \sqrt{8})(x + \sqrt{8}) \][/tex]
So the numerator in factored form is:
[tex]\[ \frac{2(x^2 - 8)}{(x+8)(x+1)} \][/tex]
Step 2: Simplify the Denominator
The denominator is given by:
[tex]\[ \frac{x}{x+1} - \frac{5x-1}{x} \][/tex]
Find a common denominator for [tex]\( x+1 \)[/tex] and [tex]\( x \)[/tex]:
[tex]\[ \frac{x}{x+1} - \frac{5x-1}{x} = \frac{x \cdot x - (5x-1)(x+1)}{x(x+1)} \][/tex]
Expand and simplify the numerator:
[tex]\[ x \cdot x = x^2 \][/tex]
[tex]\[ (5x-1)(x+1) = 5x^2 + 5x - x - 1 = 5x^2 + 4x - 1 \][/tex]
Subtract these results:
[tex]\[ \frac{x^2 - (5x^2 + 4x - 1)}{x(x+1)} = \frac{x^2 - 5x^2 - 4x + 1}{x(x+1)} = \frac{-4x^2 - 4x + 1}{x(x+1)} \][/tex]
So the denominator in factored form is:
[tex]\[ \frac{-4x^2 - 4x + 1}{x(x+1)} \][/tex]
Step 3: Simplify the Entire Expression
Now we combine the simplified numerator and denominator:
[tex]\[ \frac{\frac{2(x^2 - 8)}{(x+8)(x+1)}}{\frac{-4x^2 - 4x + 1}{x(x+1)}} = \frac{2(x^2 - 8) \cdot x(x+1)}{(x+8)(x+1) \cdot (-4x^2 - 4x + 1)} \][/tex]
Cancel the common factors [tex]\((x+1)\)[/tex] from the numerator and the denominator:
[tex]\[ \frac{2(x^2 - 8) \cdot x}{(x+8) \cdot (-4x^2 - 4x + 1)} \][/tex]
Therefore, the simplified result of the given expression, in its factored form, is:
[tex]\[ \boxed{\frac{2x(x^2 - 8)}{(x+8)(-4x^2 - 4x + 1)}} \][/tex]
Step 1: Simplify the Numerator
The numerator is given by:
[tex]\[ \frac{x-8}{x+8} + \frac{x-1}{x+1} \][/tex]
To add these fractions, we need a common denominator. The common denominator for [tex]\( x+8 \)[/tex] and [tex]\( x+1 \)[/tex] is [tex]\((x+8)(x+1)\)[/tex]:
[tex]\[ \frac{x-8}{x+8} + \frac{x-1}{x+1} = \frac{(x-8)(x+1) + (x-1)(x+8)}{(x+8)(x+1)} \][/tex]
Now, expand and simplify the numerators:
[tex]\[ (x-8)(x+1) = x^2 + x - 8x - 8 = x^2 - 7x - 8 \][/tex]
[tex]\[ (x-1)(x+8) = x^2 + 8x - x - 8 = x^2 + 7x - 8 \][/tex]
Add these results:
[tex]\[ \frac{x^2 - 7x - 8 + x^2 + 7x - 8}{(x+8)(x+1)} = \frac{2x^2 - 16}{(x+8)(x+1)} \][/tex]
Factor the numerator:
[tex]\[ 2x^2 - 16 = 2(x^2 - 8) = 2(x - \sqrt{8})(x + \sqrt{8}) \][/tex]
So the numerator in factored form is:
[tex]\[ \frac{2(x^2 - 8)}{(x+8)(x+1)} \][/tex]
Step 2: Simplify the Denominator
The denominator is given by:
[tex]\[ \frac{x}{x+1} - \frac{5x-1}{x} \][/tex]
Find a common denominator for [tex]\( x+1 \)[/tex] and [tex]\( x \)[/tex]:
[tex]\[ \frac{x}{x+1} - \frac{5x-1}{x} = \frac{x \cdot x - (5x-1)(x+1)}{x(x+1)} \][/tex]
Expand and simplify the numerator:
[tex]\[ x \cdot x = x^2 \][/tex]
[tex]\[ (5x-1)(x+1) = 5x^2 + 5x - x - 1 = 5x^2 + 4x - 1 \][/tex]
Subtract these results:
[tex]\[ \frac{x^2 - (5x^2 + 4x - 1)}{x(x+1)} = \frac{x^2 - 5x^2 - 4x + 1}{x(x+1)} = \frac{-4x^2 - 4x + 1}{x(x+1)} \][/tex]
So the denominator in factored form is:
[tex]\[ \frac{-4x^2 - 4x + 1}{x(x+1)} \][/tex]
Step 3: Simplify the Entire Expression
Now we combine the simplified numerator and denominator:
[tex]\[ \frac{\frac{2(x^2 - 8)}{(x+8)(x+1)}}{\frac{-4x^2 - 4x + 1}{x(x+1)}} = \frac{2(x^2 - 8) \cdot x(x+1)}{(x+8)(x+1) \cdot (-4x^2 - 4x + 1)} \][/tex]
Cancel the common factors [tex]\((x+1)\)[/tex] from the numerator and the denominator:
[tex]\[ \frac{2(x^2 - 8) \cdot x}{(x+8) \cdot (-4x^2 - 4x + 1)} \][/tex]
Therefore, the simplified result of the given expression, in its factored form, is:
[tex]\[ \boxed{\frac{2x(x^2 - 8)}{(x+8)(-4x^2 - 4x + 1)}} \][/tex]
We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. IDNLearn.com is your source for precise answers. Thank you for visiting, and we look forward to helping you again soon.