\left. \begin{array} { l } { \text { 1. } 3 x ( 2 x ^ { 4 } - 9 x ^ { 3 } + 5 x - 12 ) } \\ { \text { 2. } - 2 m n ( m ^ { 2 } + 3 n - 6 m ^ { 2 } + 14 m ^ { 2 } n ) } \\ { \text { 6ab } ( a ^ { 2 } b - 3 a b ^ { 2 } + a b - b ^ { 3 } + a ^ { 4 } ) } \\ { x y ( x - 3 x y ^ { 2 } + x ^ { 2 } y - 14 y ) } \\ { x y z ( 2 z + 4 x - 9 y ^ { 2 } - 3 x ^ { 2 } + 2 ) } \\ { ( x - 3 ) ( x + 5 ) } \\ { ( x - 9 ) ( x - 2 ) } \\ { ( y + 13 ) ( y - 7 ) } \\ { ( m + 5 ) ( m + 11 ) } \\ { ( g - 8 ) ( g + 3 ) } \\ { ( 3 x - 1 ) ( x + 4 ) } \end{array} \right.
Evaluate
3x\left(2x^{4}-9x^{3}+5x-12\right),\ 2\left(-mn\left(14nm^{2}-5m^{2}+3n\right)+1\right),\ 6ab\left(ba^{2}+a^{4}-3ab^{2}+ab-b^{3}\right),\ xy\left(-3xy^{2}+x+yx^{2}-14y\right),\ xyz\left(2+2z-9y^{2}+4x-3x^{2}\right),\ \left(x-3\right)\left(x+5\right),\ \left(x-9\right)\left(x-2\right),\ \left(y-7\right)\left(y+13\right),\ \left(m+5\right)\left(m+11\right),\ \left(g-8\right)\left(g+3\right),\ \left(3x-1\right)\left(x+4\right)
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