Evaluating Limits - GRE Subject Test: Math
Card 0 of 1
Question
Evaluate: 
Evaluate:
Answer
Step 1: See if we can plug in 
into the equation..
We can't because the denominator becomes 
..
Step 2: Factor the denominator:
(By the Difference of Perfect Squares Formula)
Step 3: Re-write the function:
Step 4: Divide by 
on both the numerator and denominator because it's common:
We are left with: 
Step 5: Plug in 
:
The limit of this function as x approaches 2 is 
.
Step 1: See if we can plug in
We can't because the denominator becomes
Step 2: Factor the denominator:
Step 3: Re-write the function:
Step 4: Divide by
We are left with:
Step 5: Plug in
The limit of this function as x approaches 2 is
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