Question

(-1-2)×[-7×(2-5)-3×(4-2)-1]

Answer 1

Olá, Kerem. (=^.^=)/

(-1-2)×[-7×(2-5)-3×(4-2)-1] = -51

(-1-2)×[-7×(2-5)-3×(4-2)-1] = 
-3.[-7.(-3)-3.(2)-1] = 
-3.[21-3-1] =
-3.[21-4] = 
-3.[17] = -51

Bons estudos! :-D

Answer 2

(-1-2)×[-7×(2-5)-3×(4-2)-1]
= -3 [ -7 (-3)-3(2-1)]
= -3 [ -7 ( -3)-3]
= -2 [ 21 - 3]
= -2 [ 18]
= - 36