4 left 4x 3 right )= 6 left x 12 right July 8, 2019 16 32 64 128 4 + 4 = 3 4 + 4 = 6 4 x 4 x 4 x 3 left( 1 - x right) + 5 left( x + 2 right) = 1 - 4x
