Cześć!
a)
3² · 6 - 5 = 9 · 6 - 5 = 54 - 5 = 49
b)
3 · (5 - 3)³ + 5 · 2² = 3 · 2³ + 5 · 4 =
= 3 · 8 + 20 = 24 + 20 = 44
c)
5² + (32 - 5 · 6) = 25 + (32 - 30) = 25 + 2 = 27
d)
1800 : 6 - 6² · 2 = 300 - 36 · 2 = 300 - 72 = 228