How do you simplify $-sqrt(1089)$ ?

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Answer 1 · 2016-06-01T07:04:14

$-sqrt1089=-33$

As $1089$ is divisible by $9$ (sum of digits divisible by $9$ )

and quotient is $121=11xx11$

Hence

$-sqrt1089=-sqrt(ul(3xx3)xxul(11xx11))$

= $-3xx11=-33$

How do you simplify -sqrt(1089)-sqrt(1089)?