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OpenStudy (anonymous):
square root of 27 +(plus) the square root of 75 and Why
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OpenStudy (anonymous):
\[\sqrt{27}+\sqrt{75}\]Now what do we know about 27 and 75. Can you think of any factors?
OpenStudy (anonymous):
5?
OpenStudy (anonymous):
\[\sqrt{9 \times 3} + \sqrt{3 \times 25}\]
OpenStudy (anonymous):
which we can treat as \[ 3\sqrt{3} + 5\sqrt{3}\]
OpenStudy (anonymous):
oh! i get it. Thanks!
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OpenStudy (anonymous):
Which becomes \[8\sqrt{3}\]
OpenStudy (anonymous):
great! No problem
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