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Digiron [165]
3 years ago
10

Add or subtract as indicated

Mathematics
1 answer:
Aliun [14]3 years ago
5 0

Option B: \frac{11x-9}{x^2-1} is the correct answer

Step-by-step explanation:

Given

\frac{5}{x+1} + \frac{6}{x-1} -\frac{10}{x^2-1}

Simplifying x^2-1

x^2-1 = (x+1)(x-1)

So,

\frac{5}{x+1} + \frac{6}{x-1} -\frac{10}{(x+1)(x-1)}\\=\frac{5(x-1)+6(x+1)-10}{(x+1)(x-1)}\\=\frac{5x-5+6x+6-10}{(x+1)(x-1)}\\=\frac{5x+6x-5+6-10}{(x+1)(x-1)}\\=\frac{11x-9}{(x+1)(x-1)}\\=\frac{11x-9}{x^2-1}

Hence,

Option B: \frac{11x-9}{x^2-1} is the correct answer

Keywords: Fractions, polynomials

Learn more about polynomials at:

  • brainly.com/question/4703807
  • brainly.com/question/4703820

#LearnwithBrainly

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