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X 2x 4x 2 x 1 x
X 2x 4x 2 x 1 x pictures 5
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X 2x 4x 2
X 2x 4x 2 x 1 x
resolver 4x 2x 1 x 2x 2 x x
(- x 5 )( x 2 )-( 2x 1 2 4x x 1
4x x 2 x 1 )- x 3x 2 2x 5
x 2 4x 1 x 1 2 u003d- x 2 5x 1 2x 1
2x 2 2x )( x 2 2 /( x 3 4x )( x 1
lim x 2 2x 1 x 2 4x 2 x
x 2x 4x 2 x 1 x