Odpowiedź:
1.
a)
8²/2 = 64/2 = 32
b)
(-2)^7/2 = -2^7 : 2 = -2^6 = -64
c)
9/(-9)² = 9/81 = 1/9
d)
-3^4/27 = -3^4 : 3³ = -3^1 = -3
2.
a)
(2^7)^7 = 2^49
b)
[(-3)^7]^5 = (-3)^35
c)
[(-0,1)^4]^6 = (-0,1)^24
d)
[(10³)^5]^6 = (10^15)^6 = 10^90
3.
1000^8 = (10³)^8 = 10^24
b)
100^17 = (10²)^17 = 10^34
c)
1000^400 = (10³)^400 = 10^1200
d)
(100^6)^9 = [(10²)^6]^9 = (10^12)^9 = 10^108
4.
2^8 * 5^8 = 10^8
10^8 : 10^5 = 10³
10³ * 0,9³ = 9³
9³ : 18³ = (1/2)³
5.
a)
8 * 2³ * 2^6 = 2³ * 2^9 = 2^12
b)
81 * 3^7 : 3^4 = 3^4 * 3³ = 3^7
c)
64 * 16 : 2^5 = 2^6 * 2^4 : 2^5 = 2^10 : 2^5 = 2^5
6.
a)
√36 - ∛-8 = 6 - (-2) = 6 + 2 = 8
b)
4√1/64 + √16 : 2 = 4 * 1/8 + 4 : 2 = 1/2 + 2 = 2 1/2
c)
∛(25 * √25) = ∛(25 * 5) = ∛125 = 5
d)
√[9√(9√81)] = √[9√(9*9)] = √(9*9) = √81 = 9
e)
√144 + √25 - √(144+25) = 12 + 5 - √169 = 17 - 13 = 4
f)
√100 : ∛8 + √49 = 10 : 2 + 7 = 5 + 7 = 12
7.
P = 1/2ah = 1/2√5*2√5 = 1/2 * 5 * 2 = 5
8.
(2√48 - 3√12)/(2√3) = [2√(3*16) - 3(3*4)]/(2√3) = (8√3 - 6√3)/(2√3) = 4 - 3 = 1
Szczegółowe wyjaśnienie: