Question

(4-5-2) (-1+2)[(-5) (-1)-3]

Answer 1

primero se resuelven los parentesis
(4-5-2) = - 3
(-1 + 2) = 1
[(-5)(-1) -3] = 5-3 = 2
(-3)(1)(2) = -6
=-6

ten presente las propiedades de multiplicacion de signos

Answer 2

(4-5-2)(-1+2) [(-5)(-1)-3] = (-1-2)(+1)[(+5)-3]=(-3)[+5-3]=(-3)[+2]=-6