4 5 x 15 12 July 8, 2019 16 32 64 128 4 5 8 15 x 5 12 3 4 5 x 7 15 12 5 4 2 15 x 12 1 5 4 15 5 12 x 8 25 Y 4 x 5 6 x 15 y 12 0 5 12 4 15 x 0 51 125 5 4 x )= 15 12 3 x 4 5 x 15 12 4 5 x 15 )= 2 5x 6 12 4 5 x 15 )= 2 5x 6 answer 12 4 5 x 15 )= 2 5 6 9 5 x 4 3 12 15 Tìm x 125 5 4 x )= 15 5 2 x 15 12 x 4
