a)
[tex]3 \times 4 - 4( - 3) + 2 = \\ = 12 + 12 + 2 = \\ = 24 + 2 = \\ = 26[/tex]
b)
[tex]0.5( - 2 {)}^{2} + ( - 2) - 2 = \\ = 0.5 \times 4 - 2 - 2 = \\ = 2 - 2 - 2 = \\ = - 2[/tex]
c)
[tex](( - 1) + 4)(1 - 3) - 1 = \\ = 3 \times ( - 2) - 1 = \\ = - 6 - 1 = \\ = - 7[/tex]