Math Problem Statement

solve the complex fraction ((1/x-5)+(1/5+x))/(x+1)

Solution

To solve the complex fraction

(1x5+15+x)x+1,\frac{\left(\frac{1}{x-5} + \frac{1}{5+x}\right)}{x+1},

we first simplify the numerator and then divide by the denominator.

Step 1: Simplify the Numerator

The numerator is

1x5+15+x.\frac{1}{x-5} + \frac{1}{5+x}.

To add these fractions, we need a common denominator. Notice that x5x - 5 and 5+x5 + x are the same expressions (since addition is commutative), so the common denominator is (x5)(x+5)(x - 5)(x + 5).

Thus, rewrite the fractions:

1x5+1x+5=(x+5)+(x5)(x5)(x+5).\frac{1}{x-5} + \frac{1}{x+5} = \frac{(x+5) + (x-5)}{(x-5)(x+5)}.

Simplify the numerator:

(x+5)+(x5)=x+5+x5=2x.(x+5) + (x-5) = x + 5 + x - 5 = 2x.

So, the numerator simplifies to:

2x(x5)(x+5).\frac{2x}{(x-5)(x+5)}.

Step 2: Form the Complex Fraction

Now, the expression becomes:

2x(x5)(x+5)x+1.\frac{\frac{2x}{(x-5)(x+5)}}{x+1}.

This is equivalent to:

2x(x5)(x+5)÷(x+1).\frac{2x}{(x-5)(x+5)} \div (x+1).

To divide by x+1x+1, we multiply by its reciprocal:

2x(x5)(x+5)1x+1=2x(x5)(x+5)(x+1).\frac{2x}{(x-5)(x+5)} \cdot \frac{1}{x+1} = \frac{2x}{(x-5)(x+5)(x+1)}.

Step 3: Simplified Expression

The final simplified expression for the complex fraction is:

2x(x5)(x+5)(x+1).\frac{2x}{(x-5)(x+5)(x+1)}.

Conclusion

The simplified form of the complex fraction

(1x5+1x+5)x+1\frac{\left(\frac{1}{x-5} + \frac{1}{x+5}\right)}{x+1}

is

2x(x5)(x+5)(x+1).\frac{2x}{(x-5)(x+5)(x+1)}.

Would you like more details, or do you have any questions?

Related Questions

  1. How would the solution change if the fraction was (1/(x5)1/(5+x))x+1\frac{(1/(x-5) - 1/(5+x))}{x+1}?
  2. What are the restrictions on xx for the simplified expression to be valid?
  3. How would you solve the equation (1x5+1x+5)x+1=0\frac{\left(\frac{1}{x-5} + \frac{1}{x+5}\right)}{x+1} = 0?
  4. How does the solution change if x+1x+1 is in the numerator instead of the denominator?
  5. Can this complex fraction be simplified further if we consider limits as x0x \to 0?

Tip: When simplifying complex fractions, always try to factor and find a common denominator to reduce the complexity step by step.

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Math Problem Analysis

Mathematical Concepts

Fractional algebra
Complex fractions
Common denominators

Formulas

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Theorems

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Suitable Grade Level

Grades 9-12