How do you simplify: the square root of 200?

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• Square root of a number can be simplified by prime factorising the number.

• Prime factorisation involves expressing a number as a product of prime numbers.

(##200## has ##2## and ##5## as its prime factors.)

So,

##sqrt(200) = sqrt(2*2*2*5*5)##

##sqrt200=sqrt(2^2 *2 *5^2)##

##=2*5sqrt2##

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