2.Calculati
a)5²=.............
b)7²=.............
c)(-5)²=..........
d)(-7)²=..........
e)4³=..............
f)5³=...............
g)(-4)³=..........
h)(-5)³=...........
i)3⁴=..........
j)2⁵=..........
k)(-3)⁴=..........
l)(-2)⁵=...........
3.Calculati
a)(-2)³+3²
b)5²-(-2)⁴
c)2³+(-3)³
d)(-2)⁵+3²
e)(-3)²+
f)(-5)³+(-6)²
g)(-3)³-(-2)⁶
h)(-3)⁴-(-7)²
i)(-2)⁷-(-5)³
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