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Add.
The numerator should be expanded and simplified. The denominator should be either expanded or factored.

(2x)/(x^(2)-3x-4)+(3)/(5x^(2)-20 x)=

Add.\newlineThe numerator should be expanded and simplified. The denominator should be either expanded or factored.\newline2xx23x4+35x220x= \frac{2 x}{x^{2}-3 x-4}+\frac{3}{5 x^{2}-20 x}=

Full solution

Q. Add.\newlineThe numerator should be expanded and simplified. The denominator should be either expanded or factored.\newline2xx23x4+35x220x= \frac{2 x}{x^{2}-3 x-4}+\frac{3}{5 x^{2}-20 x}=
  1. Factor denominators: Factor the denominators of both fractions.\newlineWe need to factor the denominators to find a common denominator for the addition.\newlineFor the first fraction, the denominator is x23x4x^2 - 3x - 4, which factors into (x4)(x+1)(x - 4)(x + 1).\newlineFor the second fraction, the denominator is 5x220x5x^2 - 20x, which can be factored by taking out the common factor of 5x5x, resulting in 5x(x4)5x(x - 4).
  2. Identify LCD: Identify the least common denominator (LCD). The LCD for the fractions is the product of the distinct factors from both denominators, which is 5x(x4)(x+1)5x(x - 4)(x + 1).
  3. Rewrite with LCD: Rewrite each fraction with the LCD as the new denominator.\newlineFor the first fraction, we multiply the numerator and denominator by 55 to get 10x5x(x4)(x+1)\frac{10x}{5x(x - 4)(x + 1)}.\newlineFor the second fraction, we multiply the numerator and denominator by (x+1)(x + 1) to get 3(x+1)5x(x4)(x+1)\frac{3(x + 1)}{5x(x - 4)(x + 1)}.
  4. Combine fractions: Combine the fractions over the common denominator.\newlineNow we add the two fractions together:\newline(\frac{10x}{5x(x - 4)(x + 1)}) + (\frac{3(x + 1)}{5x(x - 4)(x + 1)})\(\newline= \frac{10x + 3(x + 1)}{5x(x - 4)(x + 1)}\)
  5. Expand and simplify numerator: Expand and simplify the numerator.\newlineWe distribute the 33 in the second term of the numerator:\newline10x+3(x+1)=10x+3x+3=13x+310x + 3(x + 1) = 10x + 3x + 3 = 13x + 3
  6. Write final simplified expression: Write the final simplified expression.\newlineThe final expression is:\newline(13x+35x(x4)(x+1))(\frac{13x + 3}{5x(x - 4)(x + 1)})

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