Question

(2radical din 2 - radical3)la puterea 2

Answer 1

(2√2 - √3)=(2•2•2-3)=8-3=5

Answer 2

$(2 \sqrt{2} - \sqrt{3} )^2=(2 \sqrt{2} )^2-2 \cdot 2 \sqrt{2} \cdot \sqrt{3} +( \sqrt{3} )^2= \\ =8-4 \sqrt{6} +3=11-4 \sqrt{6}$