anonymous
  • anonymous
Multiply and then simplify the radical. 5 square root of 10 times 3 square root of 8
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
@PinkSapphire
PinkSapphire
  • PinkSapphire
Can you try it out this time? Then I'll tell you if you did it correctly or not.
anonymous
  • anonymous
15 square root of 18

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PinkSapphire
  • PinkSapphire
I don't think you can do that because when you're multiplying radicals, treat them as if they are variables. For example:\[5x \times 3x=15x\]But for this problem, you have to make the radicals (square roots) the same first before yu multiply the numbers outside the radicals.
PinkSapphire
  • PinkSapphire
*you
PinkSapphire
  • PinkSapphire
Actually, your answer was right, my mistake.
PinkSapphire
  • PinkSapphire
Wait, it's actually...\[15\sqrt{80}\]
anonymous
  • anonymous
You multiplied it, but you still have to simplify \(15 \sqrt{80}\).
PinkSapphire
  • PinkSapphire
\[5\sqrt{10}\times3\sqrt{8}\] \[5\times3 \sqrt{10\times8}\] \[15\sqrt{80}\]But to simplify it... \[15\sqrt{10\times8}\] \[15\sqrt{5\times2\times4\times2}\] \[15\sqrt{5\times4\times4}\] \[15\sqrt{5\times16}\] \[15\times4\sqrt{5}\] \[60\sqrt{5}\] I'm not really sure if I did it correctly...

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