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OpenStudy (anonymous):
Can someone show me the steps to simplify this algebra problem please?
$\frac{5+\sqrt{3}}{2-\sqrt{3}}$
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jimthompson5910 (jim_thompson5910):
hint: multiply top and bottom by \(\large 2+\sqrt{3}\)
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
would it be \[10+\sqrt{9}\] after multipling?
jimthompson5910 (jim_thompson5910):
I'm assuming you got that after multiplying \(\large (5+\sqrt{3})(2+\sqrt{3})\)
OpenStudy (anonymous):
yeah
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jimthompson5910 (jim_thompson5910):
but that's not correct since you didn't FOIL
OpenStudy (anonymous):
oh
jimthompson5910 (jim_thompson5910):
hint:
(a+b)(c+d)
is the same as
a(c+d) + b(c+d)
OpenStudy (anonymous):
I learned how to do this before but have forgotten how to do this type of math. I'm trying to help my nephew with his homework.
jimthompson5910 (jim_thompson5910):
FOIL stands for First, Outer, Inner, Last
and it helps you multiply two binomials
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OpenStudy (anonymous):
when you multiple the \[\sqrt{3} and the \sqrt{3}\] does it equal \[\sqrt{9}\] and then simplify further down to just 3?
OpenStudy (anonymous):
I figured it out thank you
OpenStudy (anonymous):
\[13+7\sqrt{3}\]
jimthompson5910 (jim_thompson5910):
that's correct and you're welcome
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