x33 ( 6x6x22 - 8x−8x + \dfrac{7}{8}87) = 6x6x+22 - 8x−8x3+3+ ++ \dfrac{7}{8}x87x = 6x6x -...
Đọc tiếp
x33 ( 6x6x22 - 8x−8x + \dfrac{7}{8}87) = 6x6x+22 - 8x−8x3+3+ ++ \dfrac{7}{8}x87x
= 6x6x - 8x−8x ++ \dfrac{7}{8}x87x
