X 3 5 21 July 8, 2019 16 32 64 128 X 5 3 216 X 3 2 5 21 X 1 5 3 21 3 x 5 x 21.5 12 3 x 5 )= 21 Х 1 5 3 21 X minus 1 5 3 21 3 5 x 21 10 X 3 9x 2 21x 5 X 5 21x 4x 3 X 3 21y 2 5 0 Y x 3 2 21x 5 X (- 3 7 )= 5 21 4 x 3 )+ 5 21 3 x 5 )= 210
