Question

√121 + 52 − √27 3∶ 3 =

Answer 1

$\sf \sqrt{121} + 52 - \sqrt{27} \: \: 3 \div 3 \\ \\ \\ \sf \sqrt{11 {}^{2} } + 52 - \sqrt{27} \: 3 \div 3 \\ \\ \\ \sf 11 + 52 - \sqrt{27} \: 3 \div 3 \\ \\ \\ \sf 11 + 52 - \sqrt{3 {}^{2} \cdot3 } \: 3 \div 3\\ \\ \\ \sf 11 + 52 - \sqrt{3 {}^{2} } \sqrt{3} \: 3 \div 3 \\ \\ \\ \sf 11 + 52 - 3 \sqrt{3} \: 3 \div 3 \\ \\ \\ \sf 11 + 52 - 3 \sqrt{3} \cdot1 \\ \\ \\ \sf 11 + 52 - 3 \sqrt{3} \\ \\ \\ \sf {\color{red}63 - 3 \sqrt{3} }$

Att: Nerd1990