Question

(√3-√27)*√3-√20(√5-√20)

Answer 1

(3+27)•3-20(5-20)=1,100

Answer 2

Напишу проще

Answer 3

$( sqrt{3}- sqrt{27}) sqrt{3} - sqrt{20} ( sqrt{5} - sqrt{20})=( sqrt{3} -3 sqrt{3}) sqrt{3}- sqrt{20}( sqrt{5} - sqrt{20})$$=3-3*3-10+20=3-9-10+20=4;$