Question

the exact value of the radical expression sqrt(169) - sqrt(50) - sqrt(8)

Answer 1

I am going to give you a couple hints.

\(\Large\color{blue}{ \bf 169=13^{2} }\)
\(\Large\color{blue}{ \bf 50=5^{2}\times 2 }\)
\(\Large\color{blue}{ \bf 8=2^{2} \times 2 }\)