Răspuns :
[tex] \sqrt{10+3} * \sqrt{10-3} + \sqrt{2-3} ^2\\
\sqrt{13} * \sqrt{7} + \sqrt{1} \\
\sqrt{91} + \sqrt{1} [/tex]
(√10 + 3)(√10 - 3) + (√2 - 3)² =
10 - 9 - 3√10 + 3√10 + 4 - 6√2 + 9 =
10 + 4 - 6√2 =
14 - 6√2 =
2(7 - 3√2)
10 - 9 - 3√10 + 3√10 + 4 - 6√2 + 9 =
10 + 4 - 6√2 =
14 - 6√2 =
2(7 - 3√2)