Question

$144 \div 4 \sqrt{3}$
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Answer 1

 

$\displaystyle\bf\\144\div4\sqrt{3}=\frac{144}{4\sqrt{3}}\\\\Rationalizam~numitorul.~~ (Amplificam~fractia~cu~\sqrt{3})\\\\\frac{144}{4\sqrt{3}}=\frac{144\times\sqrt{3}}{4\sqrt{3}\times\sqrt{3}}=\frac{144\sqrt{3}}{4\times3}=\frac{144\sqrt{3}}{\bf{12}}=\boxed{\bf12\sqrt{3}}$