### Question 2

Simplify the following surd expressions:

 (a) $$\sqrt{2} \times \sqrt{8}$$ (b) $$(\sqrt{5} - 2)(\sqrt{5} + 1)$$ (c) $$7\sqrt{5} + \sqrt{5}$$ (d) $$\sqrt{3} \times \sqrt{27}$$ (e) $$\sqrt{80} \div \sqrt{5}$$ (f) $$3 \times \sqrt{68}$$ (g) $$\sqrt{20} + \sqrt{45}$$ (h) $$(\sqrt{3} + 5)(\sqrt{3} +2)$$ (i) $$\sqrt{48} + \sqrt{75}$$ (j) $$\sqrt{125} \div \sqrt{180}$$ (k) $$\sqrt{50} + \sqrt{98}$$ (l) $$(\sqrt{7} - 3)(\sqrt{7} + 1)$$