Question

 5√50-3√98+7√8

 2√80+4√45+3√425

Answer 1

a: \(=25\sqrt{2}-21\sqrt{2}+14\sqrt{2}=18\sqrt{2}\)

b: \(=8\sqrt{5}+12\sqrt{5}+15\sqrt{17}=20\sqrt{5}+15\sqrt{17}\)