10x 2 5x 2x 2 4x July 8, 2019 16 32 64 128 4x 2 10x )+( 2x 2 5x 5 2x 10x 2 5x 2 )- 5x 4x 2 2x 1 2x 10 10x - 2(4x - 5) = 2x + 10
