Question

completati adecvat 7+4radical din3=(2+x)la patrat

Answer 1

$7 + 4 \sqrt{3} = (2 + x) {}^{2} = > ( 2 + x) {}^{2} = 7 + 4 \sqrt{3} = > x = - 4 - \sqrt{3} . \: x = \sqrt{3}$