Question

(3-корени 5)^2+(3+корень 5)^2​

Answer 1

$(3 - \sqrt{5} {)}^{2} + (3 + \sqrt{2} {)}^{2} = \\ 9 - 6 \sqrt{5} + 5 + 9 + 6 \sqrt{5} + 5 = \\ 28$