To subtract \(7\sqrt{5} - 4\sqrt{5}\), you can combine the like terms (which are both multiples of \(\sqrt{5}\)):
\[ 7\sqrt{5} - 4\sqrt{5} = (7 - 4)\sqrt{5} = 3\sqrt{5} \]
So, the difference is \(3\sqrt{5}\).
The difference is what?
1 answer
To subtract \(7\sqrt{5} - 4\sqrt{5}\), you can combine the like terms (which are both multiples of \(\sqrt{5}\)):
\[ 7\sqrt{5} - 4\sqrt{5} = (7 - 4)\sqrt{5} = 3\sqrt{5} \]
So, the difference is \(3\sqrt{5}\).