Item 1. Simplify. \(-\sqrt{18}+18+\sqrt{54}-54\)
Item 2. Simplify. \(7a\sqrt[3]{54}+3a\sqrt[3]{250}-a\sqrt[3]{2}\)
Item 5. Which is equivalent to \(\left(\frac{16}{81}\right)^{-3/4}\)?
Item 4. Simplify and rationalize the denominator. \(\frac{\sqrt{10}}{\sqrt{20}-5}\)
Item 6. Simplify. \(a^{2/5}\times a^{1/2}\)
Item 8. Solve: \(2\sqrt{x+3}=\sqrt{3x}\)
Item 3. Expand and simplify. \((\sqrt5-2\sqrt3)(-2\sqrt5-4\sqrt3)\)
Item 7. What are the restrictions on x for \(\sqrt{-3x^2}\)?
