Question

a)(2+✓2)la 2-(2✓2-3)la 2​

Answer 1

Răspuns:

$(2 + \sqrt{2} )^{2} = 4 + 4 \sqrt{2} + 2 = 6 + 4 \sqrt{2}$

$(2 \sqrt{2} - 3)^{2} = 8 - 12 \sqrt{2} + 9 = 17 - 12 \sqrt{2}$

$6 + 4 \sqrt{2} - 17 + 12 \sqrt{2} = 16 \sqrt{2} - 11$