$$( 4.6 ) ^ { 2 } - 2 ( 1.3 + 2.9 )$$
$12.76$
$$21.16-2\left(1.3+2.9\right)$$
$$21.16-2\times 4.2$$
$$21.16-8.4$$
$$12.76$$
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$\frac{11 \cdot 29}{5 ^ {2}} = 12\frac{19}{25} = 12.76$
