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{:[(2)/(x+1)+(x)/(x-1)=(2)/(x^(2)-1)]:}

2x+1+xx1=2x21 \frac{2}{x+1}+\frac{x}{x-1}=\frac{2}{x^{2}-1}

Full solution

Q. 2x+1+xx1=2x21 \frac{2}{x+1}+\frac{x}{x-1}=\frac{2}{x^{2}-1}
  1. Identify common denominator: First, let's identify the common denominator for the fractions on the left side of the equation. The common denominator will be the product of (x+1)(x+1) and (x1)(x-1), which is (x21)(x^2 - 1).
  2. Rewrite fractions with common denominator: Now, let's rewrite each fraction on the left side of the equation with the common denominator x21x^2 - 1.2x+1\frac{2}{x+1} becomes 2(x1)x21\frac{2(x-1)}{x^2 - 1} and xx1\frac{x}{x-1} becomes x(x+1)x21\frac{x(x+1)}{x^2 - 1}.
  3. Add fractions: Next, we add the two fractions on the left side of the equation.\newline(2)(x1)/(x21)+(x)(x+1)/(x21)=(2x2+x2+x)/(x21)(2)(x-1)/(x^2 - 1) + (x)(x+1)/(x^2 - 1) = (2x - 2 + x^2 + x)/(x^2 - 1)
  4. Simplify combined fraction: Simplify the numerator of the combined fraction. \newline(2x2+x2+x)(2x - 2 + x^2 + x) simplifies to (x2+3x2)(x^2 + 3x - 2).\newlineSo, we have x2+3x2x21\frac{x^2 + 3x - 2}{x^2 - 1} on the left side of the equation.
  5. Equate left and right side: Now, we can equate the simplified left side of the equation to the right side of the equation, which is already given as (2)/(x21)(2)/(x^2 - 1).\newline(x2+3x2)/(x21)=(2)/(x21)(x^2 + 3x - 2)/(x^2 - 1) = (2)/(x^2 - 1)
  6. Equate numerators: Since the denominators are the same, we can equate the numerators. x2+3x2=2x^2 + 3x - 2 = 2
  7. Subtract to set to zero: Subtract 22 from both sides to set the equation to zero.\newlinex2+3x22=0x^2 + 3x - 2 - 2 = 0\newlinex2+3x4=0x^2 + 3x - 4 = 0
  8. Solve quadratic equation: Now, we need to solve the quadratic equation x2+3x4=0x^2 + 3x - 4 = 0. We can do this by factoring, completing the square, or using the quadratic formula. Let's try factoring first.\newline(x+4)(x1)=0(x + 4)(x - 1) = 0

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