(5√5+√30+√125)×√5-√54

Simplify the terms first:
5√5 × √5 = 5√(5)² = 5 × 5 = 25
√30 × √5 = √(30) × √(5) = √(30 × 5) = √150
√125 × √5 = √(125) × √(5) = √(125 × 5) = √625 = 25

Putting these back into the equation:
(25 + √150 + 25) - √54

Combine the terms inside the parentheses:
50 + √150 - √54

Now simplify √150 and √54:
√150 = √(25 × 6) = 5√6
√54 = √(9 × 6) = 3√6

Putting these back into the equation:
50 + 5√6 - 3√6

Now combine like terms:
50 + 2√6

So, (5√5+√30+√125)×√5-√54 = 50 + 2√6.