Question

Упрости выражение (√2−3)2.

Answer 1

(√2-3)²=2-6√2+9=11-6√2

Answer 2

$( sqrt{2} -3) ^{2} =( sqrt{2} ) ^{2} +3 ^{2} -2* sqrt{2} *3=2+9-6 sqrt{2} =11-6 sqrt{2}$