Question

pls solve two question​

Answer 1

Step-by-step explanation:

please refer the attachment

Answer 2

$(i) \sqrt{45}+\sqrt{125} \\\\ 3\sqrt{5}+5\sqrt{5} \\ \\ 8\sqrt{5}\\\\-------------\\(ii) (2-\sqrt{3})(2+\sqrt{3})\\rule\\(a+b)(a-b)= a^{2}-b^{2}\\\\2^{2}-(\sqrt{3})^{2}\\\\4-3 = 1$