7.2 Multiplying and Dividing Radical Expressions

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7.2 Multiplying and Dividing Radical Expressions
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PRODUCT OF RADICALSRULE
Note a and b MUST be real numbers to use this
property for multiplying real numbers
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Lets try some
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Solutions
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QUOTIENT OF RADICALSRULE
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RATIONALIZING a DENOMINATOR

• How to rationalize
• If there is a radical in the bottom, then you
  must rationalize it.

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Rationalize Example
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Another Example
Why do we rationalize twice instead of just
once???
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Lets try some . . . (Be sure to rationalize the
denominator)
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Lets try some . . . (Be sure to rationalize the
denominator)