Multiply (5√19) (6√2). Give exact answer

To multiply these expressions, we can simply multiply the coefficients and combine the radicals:

(5√19)(6√2) = 5 * 6 * √19 * √2

Next, we simplify the radicals:

= 30√(19 * 2)

= 30√38

Therefore, the exact answer is 30√38.