Question

(r5 - 2 ) la a 2 a + r50


R= radical

Answer 1

$( \sqrt{5}-2) ^{2} +5 \sqrt{2} =5-4 \sqrt{5} +4+5 \sqrt{2} =9+ 5\sqrt{2}-4\sqrt{2}$

Answer 2

$( \sqrt{5}-2)^2 + \sqrt{50} = 5-4 \sqrt{5} +4 + 5 \sqrt{2} = 9+4\sqrt{5}+5 \sqrt{2}$