Question

answer of (-√2-√2)the whole square

Answer 1

${( - \sqrt{2} - \sqrt{2} )}^{2} \\ = {( - 2\sqrt{2} )}^{2} \\ = {( - 2)}^{2} \times { \sqrt{2} }^{2} \\ = 4 \times 2 \\ = 8$