Răspuns:
3.
a)
[tex] - 4 - 4 + 1 = - 7 \\ [/tex]
b)
[tex]2(m + 5) - 4(m + 5) + 4 = - 2(m + 5) + 4 = - 2(m + 5 - 2) = - 2(m + 3)[/tex]
c)
[tex]3 \times 2 + 2 \times 3 \times 1 - 1 \times 2 = 2(2 \times 3 - 1) = 2(6 - 1) = 2 \times 5 = 10[/tex]
d)
[tex]376yz + 24 \times (2yz) + 16 = 8(47yz + 3 \times 2yz + 2) = 8(47yz + 6yz + 2) = 8(53yz + 2)[/tex]
e)
[tex] - 16 + 24 + 9 = 17[/tex]
4.
a)
[tex]2 - 2 ^{6} =[/tex]
C)
[tex]42 = 2 \times 3 \times 7[/tex]
[tex]25 = 5 ^{2} [/tex]
[tex] = (2 \times 3 \times 7) - 5 ^{2} [/tex]
d)