(3√11)²-√6400(2√6)²+(-3√2)²-0,1(√120)²-(½√20)²

Question

(3√11)²-√6400
(2√6)²+(-3√2)²
-0,1(√120)²-(½√20)²

Answer 1

1) 99-80=19
2) 24+18=42
3) -12 - (1/4 *20) = -12-5= -16