Question

Решите пожалуйста (√7-√3)²=

Answer 1

(√7-√3)2=7+3-2*√7*√3=10-2√21

Answer 2

${( sqrt{7} - sqrt{3} ) }^{2} = sqrt {7}^{2} - 2 times sqrt{7} times sqrt{ 3} + sqrt {3}^{2} = 7 - 2 times sqrt{7 times 3} + 3 = 10 - 2 times sqrt{21}$
Ответ: 10 -2×кореньиз21