[tex] {3}^{1 + 2 log_{3}(2) } = {3}^{1} \times {3}^{2 log_{3}(2) } = 3 \times {3}^{ log_{3}( {2}^{2} ) } = 3 \times {2}^{2} = 3 \times 4 = 12[/tex]