5x 3 5x x 4 1 July 8, 2019 16 32 64 128 X 4 5x 3 8x 2 5x 1 0 X 4 5x 3 6x 2 5x 1 0 X 4 5x 3 6x 2 5x 1 X 4 5x 3 2x 2 5x 1 0 X 4 5x 3 4x 2 5x 1 0 5x 3 x 4 )+ 15 Rút gọn phân thức 5x 3 5x x 4 1 5 x 5 x 5 x 5 x 5 5 x 5 x 5 3 x-5=x+3
