What is the simplest radical form of $-5/2 sqrt112$ ?

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Answer 1 · 2015-07-15T11:07:30

I found: $-10sqrt(7)$

You can write it as:
$-5/2sqrt(112)=-5/2sqrt(16*7)==-5/2sqrt(7)sqrt(16)=-5/2*4sqrt(7)=-10sqrt(7)$

What is the simplest radical form of -5/2 sqrt112-5/2 sqrt112?