Answer:
[tex]2\sqrt{5} -\sqrt{7}[/tex]
Step-by-step explanation:
We can combine the values that have the same value under the radical. This will leave us with
[tex]4\sqrt{5} +2\sqrt{7} -2\sqrt{5} -3\sqrt{7} \\\\2\sqrt{5} -\sqrt{7}[/tex]
As these have different values under the radical, we are unable to simplify it more.
