8√5х+3√80х-7√0.05х

To simplify this expression, we need to simplify each term individually.

8√5х = 8 √5 x = 8√5x

3√80х = 3 √(165) x = 3 4√5 * x = 12√5x

7√0.05х = 7 √(5/100) x = 7 √(1/20) x = 7 (1/√20) x = 7 (1/√(45)) x = 7 (1/(2√5)) x = 7/(2√5) x = 7/(2√5) * x

Therefore, the simplified expression is:

8√5x + 12√5x - 7/(2√5)x

Combining like terms, we get:

20√5x - 7/(2√5)x

Therefore, the simplified expression is:

20√5x - 7/(2√5)x