Answers

  • Brainly User
2016-07-21T12:02:12+08:00
First, convert to similar terms by factoring each radicand with a common factor:

 \sqrt{(9)(5)}  -   \sqrt{(16)(5)}

3 \sqrt{5} 4 \sqrt{5}

-1 \sqrt{5}  or  - \sqrt{5}
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