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

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Answer 1 · 2018-03-09T03:55:39

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

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

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

$=> - 3 sqrt5 ~~6.7$

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