5 2 3 4 12 x July 8, 2019 16 32 64 128 5 3 4 x 12 1 2 5 3 4 x 12 x 2 filter 5 3 4 x 12 x 2 air filter 1 4 )( x 12 )- 5 =( 2 3 x 7 2 3x 3 12 4 5 7 x 2 3 chia x 1 4 12 5 2 x 3 )( 4 x )= 12 2x 5 x 5 6 2 3 x 3 4 7 12 3 4 12 3 5 x 7 2 11 12 2 5 x 3 4
