Learn how to solve limits by direct substitution problems step by step online. Find the limit of (9x^2-1)/(6x^2+13x+-1) as x approaches 1/3. Evaluate the limit \lim_{x\to{\frac{1}{3}}}\left(\frac{9x^2-1}{6x^2+13x-1}\right) by replacing all occurrences of x by \frac{1}{3}. Calculate the power \left(\frac{1}{3}\right)^2. Calculate the power \left(\frac{1}{3}\right)^2. Multiply the fraction and term in 6\cdot \left(\frac{1}{9}\right).

Find the limit of (9x^2-1)/(6x^2+13x+-1) as x approaches 1/3