Answer:
3
Step-by-step explanation:
[tex](\sqrt{6} + \sqrt{3} )(\sqrt{6} - \sqrt{3})[/tex]
this is in the form a^2 - b^2 = (a + b)(a - b) .S0,
[tex](\sqrt{6})^2 - (\sqrt{3})^2[/tex]
root and square gets cancel.
6 - 3
