Question #61a5a

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Answer 1 · 2017-03-29T15:52:32

$5sqrt700$

$=5sqrt(100*7)$

$=5(sqrt100)sqrt7$

$=5*10sqrt7$

$=50sqrt7$

Answer 2 · 2017-03-29T16:42:49

$color(blue)(50sqrt7$

$5sqrt700$

$:.=5sqrt(2*2*5*5*7)$

Note:

$color(red)(sqrta*sqrta=a$ or $color(red)(sqrt(a*a)=a$

$:.=5*2*5sqrt7$

$:.color(blue)(=50sqrt7$