chrisGA
  • chrisGA
PLEASE HELP! What is the product of Seven square root eight times four square root five? Simplify your answer.
Mathematics
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
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chrisGA
  • chrisGA
Twenty eight radical ten Fifty six radical two Fifty six radical ten Two hundred eighty radical four
anonymous
  • anonymous
Is this the problem \( \huge 7\sqrt{8} \times 4\sqrt{5} \) ??
chrisGA
  • chrisGA
yes there both is inside ( )

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anonymous
  • anonymous
What one do you think is the correct answer?
chrisGA
  • chrisGA
A
anonymous
  • anonymous
It is C
chrisGA
  • chrisGA
What did you multiply
anonymous
  • anonymous
You multiply the 7 * 4 = 28 then you multiply \( \huge \sqrt{8} * \sqrt{5} = \sqrt{40} \) Also quick note, this symbol * means to times Now we have \( \huge 28 * \sqrt{40} \) but we need to break down the \( \huge \sqrt{40} \) and we can do that by finding a perfect square and a non perfect square and then timing them together. A perfect square would be \( \huge \sqrt{4} = 2 \) and a non perfect square would be \( \huge \sqrt{10} \) Now notice that \( \huge 28 * \sqrt{4} * \sqrt{10} = \sqrt{40} \) so we are still using \( \huge \sqrt{40}\) but we have just changed its form. So now we have \( \huge 28 * \sqrt{4} * \sqrt{10} = 2\sqrt{10} \) Now we take \( \huge 2\sqrt{10} \) and times it by 28 so we have \( \huge 28 * 2\sqrt{10} = 56\sqrt{10}\)
chrisGA
  • chrisGA
oh ok

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