Răspuns:
i)
[(-6-7*2):10+9]*3 =
[(-6-14):10+9]*3 =
[-20 : 10 + 9]*3 =
[-2 + 9] * 3 =
7 * 3 =
21
j)
[(-3+9-12)*3+10]:2 + 4 =
[(6 - 12) *3 + 10]:2 + 4 =
[-6 * 3+10]:2 + 4 =
[-18 +10]:2 + 4 =
-8 :2 + 4 =
-4 + 4 =
0
k)
[(-3)^11 * (-3)^9 : 3^18 -10]^2009 + 1 ^2009 =
[(-3)^20 : 3^18 -10]^2009 + 1=
[(-3)^2 -10]^2009 + 1=
[9-10]^2009 + 1=
(-1)^2009 + 1=
-1 + 1 =
0
l)
[(-23 + 20 + 3 - 5) * (-6 + 4) + 5] *(-3)^2 =
[(-3+ 3 - 5) * (-2) + 5] *9 =
[(- 5) * (-2) + 5] *9 =
[10 + 5] *9 =
15 *9 =
135
m)
{[(5 - 2 * 3) +9] * (-2) + 3 * 4}* (-76 +78)=
{[(5 - 6) +9] * (-2) + 12}* 2=
{[(-1) +9] * (-2) + 12}* 2=
{ 8 * (-2) + 12}* 2=
{ -16 + 12}* 2=
- 4 * 2 =
-8
