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a) 82.324 = (23)2.(25)4 = 26 . 220 = 226
b) 273.94.243 = (33)3.(32)4.35 = 39.38.35 = 322
c)5.125.625 = 5.53.54 = 58
d)10.100.1000 = 10.102.103 = 106
e)84.165.32=(23)4.(24)5.25 = 212.220.25 = 237
f)274.8110=(33)4.(34)10=312.340=352
a) 82.324 = (23)2.(25)4 = 26 . 220 = 226
b) 273.94.243 = (33)3.(32)4.35 = 39.38.35 = 322
c)5.125.625 = 5.53.54 = 58
d)10.100.1000 = 10.102.103 = 106
e)84.165.32=(23)4.(24)5.25 = 212.220.25 = 237
f)274.8110=(33)4.(34)10=312.340=352
82.324
= (23)2 . (25)4
= 26.220 = 26+20
= 226
b) 815:97
= (92)5:97
= 910:97 = 910-7
= 93
a) 82 . 324 = ( 23)2 . ( 25)4 = 26 . 220 = 226
b) 815 : 97 = ( 34)5 . ( 32)7 = 320 . 314 = 334
Chúc học tốt
\(A=8^2\cdot32^4\\ =2^6\cdot2^{20}\\ =2^{26}\\ B=27^3\cdot9^4\cdot243\\ =3^9\cdot3^{12}\cdot3^5\\ =3^{26}\)
`A=8^2*32^4=(2^3)^2*(2^5)^4=2^6*2^20=2^26`
`B=27^3*9^4*243=(3^3)^3*(3^2)^4*3^5=3^9*3^8*3^5=3^22`
a: \(3\cdot3\cdot3\cdot3\cdot3=3^5\)
b: \(y\cdot y\cdot y\cdot y=y^4\)
c: \(5\cdot p\cdot5\cdot p\cdot2\cdot q\cdot4\cdot q=25\cdot2\cdot4\cdot p^2q^2=2\cdot\left(10qp\right)^2\)
d: \(a\cdot a+b\cdot b+c\cdot c+d\cdot d\cdot d\cdot d=a^2+b^2+c^2+d^4\)
l) 27^8=(33)8=324
=>278:322=324:322
=324-22=32
m) 8^4=(23)4=212
45=(22)5=210
=>84:45=212:210
=212-10=22
a) \(27^8:3^{22}\)
\(=\left(3^3\right)^8:3^{22}\)
\(=3^{24}:3^{22}=3^{24-22}\)
\(=3^2\)
b) \(8^4:4^5\)
\(=\left(2^3\right)^4:\left(2^2\right)^5\)
\(=2^{12}:2^{10}=2^{12-10}=2^2\)
bài 11
\(6.6.6.6=6^4\) '\(b.5.15.15.15.3=15.15.15.15=15^4\)
\(c.81.3.3.3=3^4.3^3=3^7\)
bài 12.
\(a.765.5=153.5^2\)
\(b.837.7.7=93.21^2\)
\(c.568.8.2.4=71.8.2^6=71.2^9\)
100.10.2.5
= (10.10).10.(2.5)
=10.10.10.10
= 10^4 (10 mũ 4 nhé )
C1: 100.10.2.5=102.10.10=104
C2: 100.10.2.5=100.10.10=100.100=1002
Chúc bạn học tốt!
a) 100.10.2.5
=102.10.10
=10(2+1+1)
=104