10 12 x 2 5 July 8, 2019 16 32 64 128 (- 12 2 x 56 10 13x 3 5 x 10 12 x 1 2 5x 2 8x 10 12 x 3x 2 Frac 10 x 5 = frac 12 x 2 7 x 2 )= 10 5x 12 12 5 x 10 2 bằng bao nhiêu 12 5x*10x 10 12 x
