Question

8.Scrieti sub forma de puteri urmatiarele numere:
a)25=
b)36=
c)49=
d)27=

9.Calculati:
a)10²-10⁰=
b)10³+10⁰=
c)10⁴-10¹=
d)10⁵+10¹=


10.Calculati:
a)2⁴-2³=
b)3⁴-3²=
c)2⁶-2⁰=
d)5³-5⁰=
e)4³-4²=
f)5³-5²=


Va rog,macar un exercitiu :(
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Answer 1

Răspuns:

8. a)

$25 = 5 {}^{2}$

b)

$36 = 6 {}^{2}$

c)

$49 = 7 {}^{2}$

d)

$27 = 3 {}^{3}$

9. a)

$10 {}^{2} - 10 {}^{0} = 100 - 1 = 99$

b)

$10 {}^{3} + 10 {}^{0} = 1000 + 1 = 1001$

c)

$10 {}^{4} - 10 {}^{1} =10000 - 10 = 9990$

d)

$10 {}^{5} + 10 {}^{1} = 100000 + 10 = 100010$

10. a)

$2 {}^{4} - 2 {}^{3} = 16 - 8 = 8$

b)

$3 {}^{4} - 3 {}^{2} = 81 - 9 = 72$

c)

$2 {}^{6} - 2 {}^{0} = 64 - 1 = 63$

d)

$5 {}^{3} - 5 {}^{0} = 125 - 1 = 124$

e)

$4 {}^{3} - 4 {}^{2} = 64 - 16 = 48$

f)

$5 {}^{3} - 5 {}^{2} = 125 - 25 = 100 = 10 {}^{2}$