Answer
$-7$
Work Step by Step
Simplify. $\dfrac{9[4-(1+6)]-(3-9)^2}{5+\dfrac{12}{5-\dfrac{6}{2+1}}}$
$=\dfrac{9[4-7]-36}{5+\dfrac{12}{3}}$
or, $=\dfrac{-27-36}{9}$
or, $=\dfrac{-63}{9}$
Hence, the result is: $-7$
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