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Direct Variation
Inverse Variation
Work Problems
Working with Radical Expressions
Rationalizing the Denominator
Solving Rational Expressions
  RATIONALIZING THE DENOMINATOR
Now let’s look at:


Again ask yourself what can you multiply by:
so that the denominator does not have a radical sign. This time you must think about the difference of two squares i.e. a2 – b2 = (a + b)(a- b). That concept works here.

Click on the Solution button to see the answer.
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