Question

multiply (4√(6)-8√(7))(3√(6)+6√(7))

Answer 1

(4√(6)-8√(7))(3√(6)+6√(7))

Answer 2

-264

Answer 3

Use Foil
\[(4\sqrt{6}-8\sqrt{7})(3\sqrt{6}+6\sqrt{7})\]
\[4\sqrt{6}*3\sqrt{6}+4\sqrt{6}*6\sqrt{7}-8\sqrt{7}*3\sqrt{6}-8\sqrt{7}*6\sqrt{7}\]
\[12\sqrt{36}+24\sqrt{42}-24\sqrt{42}-48\sqrt{49}\]
\[12*6-48*7\]
72-336
-264