Question

 Пожалуйста очень надо
(√ 6 - √ 2)^2 * (8 + 2 √ 12)

Answer 1

(a-b)²=a²-2ab+b²
(a-b)(a+b)=a²-b²

$( \sqrt{6} - \sqrt{2} )^2*(8+2 \sqrt{12} )=(6-2\sqrt{6}* \sqrt{2} +2)(8+2 \sqrt{12} )= \\ =(6+2-2 \sqrt{6*2})(8+2 \sqrt{12} )=(8-2 \sqrt{12})(8+ 2\sqrt{12} )= \\ =8^2-( 2\sqrt{12} )^2=64-4*12=64-48=16$