Question

On simplifying (√3-√7) ^2, we get

Answer 1

Answer:

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