Question

$\frac{2}{ \sqrt{2 -1} } + \frac{3}{ \sqrt{2+1} } - \frac{7}{3- \sqrt{2} } = ?$
Va roog <3

Answer 1

\frac{2}{ \sqrt{2-1} } +  \frac{3}{ \sqrt{2+1} } -  \frac{7}{3- \sqrt{2} } =  \frac{2 \sqrt{2-1} }{2-1} + \frac{3 \sqrt{2+1} }{2+1}  -  \frac{7(3+ \sqrt{2}) }{9-2} =  \frac{2}{1} +  \frac{3 \sqrt{3} }{3} -  \frac{21+7 \sqrt{2} }{7} =