Answer/s:
1.
[tex]\displaystyle \sqrt{17^2 - 15^2}\quad \boxed{>}\quad(\sqrt{17})^2 - (\sqrt{15})^2[/tex]
2.
[tex]\displaystyle \sqrt{\sqrt{4} + \sqrt{9}} \quad \boxed{<} \quad \sqrt{4} + \sqrt{9}[/tex]
3.
[tex]\displaystyle \sqrt[3]{8} + \sqrt[3]{27} \quad \boxed{>} \quad \sqrt{\sqrt[3]{8} + \sqrt[3]{27}}[/tex]
4.
[tex]\displaystyle \frac{\sqrt[3]{64}}{\sqrt[3]{4}} \quad \boxed{=} \quad \sqrt[3]{\frac{64}{4}}[/tex]
5.
[tex]\displaystyle \sqrt{50} \quad \boxed{<} \quad \sqrt{25} + \sqrt{25}[/tex]
