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OpenStudy (anonymous):
oh that will be B
\[{\sqrt{18}} + \sqrt{50}\]
\[\sqrt{9 \times2} + \sqrt{25 \times2}\]
\[3\sqrt{2}+5\sqrt{2}\]
OpenStudy (anonymous):
did u make a typing error on B?
OpenStudy (anonymous):
No i did not
OpenStudy (anonymous):
so you multiply it out and you get:
\[\sqrt6 *\sqrt 3+ \sqrt6*5\sqrt2\]
which becomes:
\[\sqrt18+5\sqrt12\]
which is also equal to:
\[\sqrt{9*2} +5 \sqrt{3*4}\]
you know that \[\sqrt9 = 3, and \sqrt4=2\]
so your expression simplifies to:
\[3\sqrt2 +10 \sqrt3\]
so the answer is C..
got it?
OpenStudy (anonymous):
my mistake
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OpenStudy (anonymous):
the answer is still B
OpenStudy (anonymous):
correct, C or B works. However, I think it depends on the question. Maybe C is the most simplified form of the expression.?