To multiply the two expressions \( (5\sqrt{19})(6 - \sqrt{2}) \), we can use the distributive property (also known as the FOIL method for binomials).
\[ (5\sqrt{19})(6 - \sqrt{2}) = 5\sqrt{19} \cdot 6 - 5\sqrt{19} \cdot \sqrt{2} \]
Now, let's calculate each term:
- \( 5\sqrt{19} \cdot 6 = 30\sqrt{19} \)
- \( 5\sqrt{19} \cdot \sqrt{2} = 5\sqrt{38} \)
Putting it all together, we have:
\[ 30\sqrt{19} - 5\sqrt{38} \]
Thus, the exact answer is:
\[ 30\sqrt{19} - 5\sqrt{38} \]