Question

(√3+√7) toata paranteza la puterea a2a 

Answer 1

√3²+2·√3·√7+√7²=3+2√21+7=10+2√21

Answer 2

$( \sqrt{3} + \sqrt{7}) ^{2}= \sqrt{3 }^{2} } +2* \sqrt{3} * \sqrt{7} + \sqrt{7} ^{2} =3+2 \sqrt{21} +7=10+2 \sqrt{21}$