Respuesta :

(4√4 * 6) - (4√2 * 4) + (√2 * 49) [ * means multiplying]

4 and 49 are square roots so you take it out the square root.

4(2)√6 - 4(2)√2 + 7√2

Add common roots -4(2)√2 + 7√2 = -√2

The answer -√2 + 8√6