Question

Simplify. 6 √20 - 3 √8

(Please explain the steps so I can better understanding thank you:))

Answer 1

Explanation:

`6 √(20) - 3 √(8) \\ = 6 √(4 * 5) - 3 √(4 * 2) \\ = 6 * 2 √(5) - 3 * 2 √(2) \\ = 12 √(5) - 6 √(2) \\`

Answer 2

to simplify this problem the answer would be 12sqrt5 - 6sqrt2 but I cannot explain it.

Explanation: