How do you simplify #-sqrt(45)#?

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Mar 9, 2018

Answer:

#color(blue)(=> (-3 sqrt5)#

Explanation:

#-sqrt45 = - sqrt(3 * 3 * 5)#

#=> - sqrt (3^2 * 5) = - sqrt3^2 * sqrt 5#

#=> - 3 sqrt5 ~~6.7#

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