thesportygamer21 thesportygamer21
  • 02-07-2019
  • Mathematics
contestada

PLEASE HELP AND EXPLAIN HOW TO DO IT IM CONFUSED

PLEASE HELP AND EXPLAIN HOW TO DO IT IM CONFUSED class=

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konrad509
konrad509 konrad509
  • 02-07-2019

[tex]3\sqrt5-2\sqrt7+\sqrt{45}-\sqrt{28}=\\3\sqrt5-2\sqrt7+\sqrt{9\cdot5}-\sqrt{4\cdot7}=\\3\sqrt5-2\sqrt7+3\sqrt{5}-2\sqrt{7}=\\6\sqrt5-4\sqrt7[/tex]

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