Homework Help Forum: calculus

Posted by breanna on Sunday, October 25, 2009 at 10:11pm.

find the limit as x reaches infinite with the equation x^2-5/2x+1

• calculus - MathMate, Monday, October 26, 2009 at 12:48am

  Remember to ADD parentheses around the numerator and denominator when transcribing fractions. f(x) = (x²-5)/(2x+1) By long division, we can reduce f(x) to f(x) = (1/2)x - 1/4 + 19/(4(2x+1)) Lim x→∞ (1/2)x - 1/4 + 19/(4(2x+1)) = ∞ + 0 + 0 = ∞

  
  

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