1 2 x 10 4 July 8, 2019 16 32 64 128 1 2 x 10 40 30 1 2 2x 10 )= 4 1 2 x 4x 10 1 2 x 4 )=- 10 3x 1 2 x 10 3 4 2 1 10 x 4 7 1 2 (- 2x 10 3 4 6x 1 2x 2 4x 10 1 2 x 6 x 10 4 1 2 4 x 10 sheetrock 1 2x 2 3x 4 10 9 x 10 2 1 x 10 4 1 2 x 4 )=- 10 2x 1 2 10 x 40 1/2 x 4 x 10 squared