-4,8x•(-5/6 y)

Решение:

• \[ -4,8x \times \left(-\frac{5}{6} y\right) = \left(-\frac{48}{10} x\right) \times \left(-\frac{5}{6} y\right) = \left(-\frac{24}{5} x\right) \times \left(-\frac{5}{6} y\right) = \frac{24 \times 5}{5 \times 6} xy = 4xy \]

Ответ: 4xy