4x 10 2x 16 July 8, 2019 16 32 64 128 4x 10 2x 16 0 10 4x 2x 8 4x 16 2x 10 4x 16 180 4x 16 2x 10 90 4x y 10 และ 2x 5y 16 4x4 = 16
