Question

-0,1x (2х2 + 6) (5 - 4х2).

Answer 1

-0,1 *(2*2 + 6) (5 - 4*2) = 
-0,1* (4+6)(5-8) =
-0,1* 20-32+30-48=
-2 -32+30-48= -52