How do you simplify $sqrt343-sqrt252$ ?

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Answer 1 · 2015-09-21T15:59:18

I found $sqrt(7)$

Let us try:
$sqrt(343)-sqrt(252)=sqrt(7*49)-sqrt(7*36)=sqrt(7)sqrt(49)-sqrt(7)sqrt(36)=7sqrt(7)-6sqrt(7)=sqrt(7)$

How do you simplify sqrt343-sqrt252sqrt343-sqrt252?