Describe the algebraic step you would perform first when evaluating the limit after…

MATHEMATICS · Subjective · AP · Calculus AB · Limits and Continuity · Limits and Continuity

Problem

Describe the algebraic step you would perform first when evaluating the limit

\displaystyle \lim_{x\to 0}\frac{\sqrt{x+9}-3}{x}

after observing that direct substitution gives an indeterminate form. Be specific about how the original expression is rewritten.