Question

(4-√3)(12+5√3)

Answer 1

multiplying and dividing radical expressions

Answer 2

just like \((a+b)(c+d)=ad+ac+bc+bd\)

Answer 3

Use the foil method. Multiply 4 by 12 and 4 by (5 radical 3) and then multiply -radical 3 by 12 and multiply it also by 5radical 3 and then add the remaining.

Answer 4

\[(4-\sqrt{3})(12+5\sqrt{3})\]
\[4\times 12+4\times 5\sqrt{3}-12\sqrt{3}-5\sqrt{3}\times \sqrt{3}\]
\[48+20\sqrt{3}-12\sqrt{3}-5\times 3\]
\[48-15+18\sqrt{3}\]