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a) 24 . 23 = 27 = 128
b) 33 . 3 . 32 = 36 = 729
c) 100.104 = 100 . 10000 = 1000000
d)514 : 512 = 52 = 25
e) 718 : 716 = 72 = 49
f) 39 : 35 = 34 = 81
a) \(2^4.2^3=2^7=128\)
b) \(3^3.3.3^2=3^6=729\)
c) \(100.10^4=10^2.10^4=10^6=1000000\)
d) \(5^{14}:5^{12}=5^2=25\)
e) \(7^{18}:7^{16}=7^2=49\)
f) \(3^9:3^5=3^4=81\)
a) $3^8:3^6=3^{8-6}=3^2$
$19^7:19^3=19^{7-3}=19^4$
$2^{10}:8^3=2^{10}:(2^3)^3=2^{10}:2^9=2^{10-9}=2^1$
$12^7:6^7=(12:6)^7=2^7$
$27^5:81^3=(3^3)^5:(3^4)^3=3^{15}:3^{12}=3^{15-12}=3^3$
b) $10^6:10=10^{6-1}=10^5$
$5^8:25^2=5^8:(5^2)^2=5^8:5^4=5^{8-4}=5^4$
$4^9:64^2=4^9:(4^3)^2=4^9:4^6=4^{9-6}=4^3$
$2^25:32^4=2^{25}:(2^5)^4=2^{25}:2^{20}=2^{25-20}=2^5$
$18^3:9^3=(18:9)^3=2^3$
\(\cdot3^8:3^6=3^{8-6}=3^2\)
\(\cdot19^7:19^3=19^{7-3}=19^4\)
\(\cdot2^{10}:8^3=2^{10}:\left(2^3\right)^3=2^{10}:2^9=2\)
\(\cdot12^7:6^7=\left(12:6\right)^7=2^7\)
\(\cdot27^5:81^3=\left(3^3\right)^5:\left(3^4\right)^3=3^{15}:3^{12}=3^3\)
\(\cdot10^6:10=10^{6-1}=10^5\)
\(\cdot5^8:25^2=5^8:\left(5^2\right)^2=5^8:5^4=5^4\)
\(\cdot4^9:64^2=4^9:\left(4^3\right)^2=4^9:4^6=4^3\)
\(2^{25}:32^4=2^{25}:\left(2^5\right)^4=2^{25}:2^{20}=2^5\)
\(18^3:9^3=\left(18:9\right)^3=2^3\)
\(a.3^3\times18-3^3\times15=3^3\times\left(18-15\right)=3^3\times3^1=3^{3-1}=3^2\)
Mình chỉ làm được con \(a\)thôi. Đợi xíu rồi mình làm b,c . t.ick cho mình đi nhé
a, a.a.a^2.a^4
=a^8
b, 4^3.2^4.2^5.16
=(2^2)^3.2^4.2^5.2^3
=2^6.2^4.2^5.2^3
=2^18
c, 5^2.5^3.125
=5^2.5^3.5^3
=5^8
d, 3^2.9.81
=3^2.3^2.3^4
=3^8
e, 2^3.2^3.18^2
=2^6.(2.3^2)^2
=2^6.2^2.3^4
=2^8.3^4
a)a.a.a^2.a^4 = a^2.a^2.a^4=a^8
b)4^3.2^4.2^5.16
=(2^2)^3.2^4.2^5.2^4
=2^6.2^4.2^4.2^4
=2^18
c)3^2.9.81
=3^2.3^2.3^4
=3^8
a)(3^3)5:3^2=3^15:3^2=3^13
b)(9.2)^3:9^3=9^3.2^3:9^3=9^3:9^3.2^3=1.2^3=2^3
a) \(5.4^2-18:3^2=5.16-18:9=80-2=78\)
b) \(3^3.18-3^3.12=3^3.\left(18-12\right)=27.6=162\)
a) 5 × 4^2 - 18 : 3^2 = 5 × 16 - 18 : 9
= 80 - 2
= 78
b) 3^3 . 18 - 3^3 . 12 = 27 . 18 - 27 . 12
= 27 . (18 - 12)
= 27 . 6
= 162