anonymous
  • anonymous
Solve: (3sqrt2-9sqrt3)(5sqrt2+15sqrt3) Please help
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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radar
  • radar
\[(3\sqrt{2}-9\sqrt{3})(5\sqrt{2}+15\sqrt{3})\]
anonymous
  • anonymous
yes that is the problem...do you know how to do it?
radar
  • radar
Multiply using rules that you need to know (15)(2)-45sqrt6+45sqr6-(135)(3) simplify: 30-405=-375

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radar
  • radar
Do you know the rules for multiplying radicals?
anonymous
  • anonymous
Somewhat
anonymous
  • anonymous
This class is killing me so bad....confusing
radar
  • radar
Take your time and practice
anonymous
  • anonymous
Thank you so much
radar
  • radar
\[\sqrt{x}\sqrt{y}=\sqrt{xy}\]
anonymous
  • anonymous
That makes sense. but why did you pull the 2 out of the matching radicals
radar
  • radar
\[\sqrt{x}\sqrt{x}=x\]
anonymous
  • anonymous
Awwww...that's where i was making my mistake then...thank you so much for the help!
radar
  • radar
\[\sqrt{2}\sqrt{2}=2\]

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