Question

How do you simplify (4−√3)(12+5√3)?

Answer 1

$4(12 + 5 \sqrt{3} ) - \sqrt{3} (12 + 5 \sqrt{3} ) \\ \\ 48 + 20 \sqrt{3} - 12 \sqrt{3} - 5 \sqrt{9} \\ \\ 48 + 8 \sqrt{3} - 5 \sqrt{9}$