a. 7³

b. 7.35.7.25 = 7 . 5 . 7 . 7 . 5 . 5 = 7³ . 5³

c. 2.3.8.12.24 = 2.3.2.2.2.2.2.3.2.2.2.3 = 2⁹ . 3³

d. 12.12.2.12.6 = 3.2.2.3.2.2.2.3.2.2.2.3 = 3⁴ . 2⁹

e. 25.5.4.2.10 = 5.5.5.2.2.2.5.2 = 5⁴ . 2⁴

f. 2.10.10.3.5.10 = 2.2.5.2.5.3.5.2.5 = 2⁴ . 5⁴ . 3

g. a.a.a+b.b.b.b = a³ + b³

h. x.x.y.y.x.y.x = x⁴ . y³

a.\(7^3\)

b.\(7^3\cdot5^3\)

c.\(2^9\cdot3^3\)

d.\(2^8\cdot3^4\)

e.\(2^4\cdot5^4\)

f.\(2^4\cdot3\cdot5^4\)

g.\(a^3+b^4\)

h.\(x^4\cdot y^3\)

a.

b.

c.

d.

e.

f.

g.

h.

thế mà cũng hỏi

Chịu

`10.1000.100000`

`=10^{1}.10^{3}.10^{5}`

`=10^{1+3+5}`

`=10^{9}`

\(10.1000.100000=10.10^3.10^5=10^9\)

a) 2.2.2.3.3 = 2³ . 3²

b) x4.x = x² . 4

a) 2.2.2.3.3 = 2³ . 3²

b) x4.x = x² . 4

a) 2.2.2.3.3 = 2³ . 3²

b) x4.x = x² . 4

a) 2³.3²

b) x²4¹

`@` `\text {Ans}`

`\downarrow`

\(7\cdot35\cdot7\cdot25\)

`=`\(7^2\cdot7\cdot5\cdot5^2\)

`=`\(7^3\cdot5^3=\left(7\cdot5\right)^3=35^3\)

1)  \(12\cdot12\cdot2\cdot12\cdot6=12\cdot12\cdot12\cdot12=12^4\)

2)   \(25\cdot5\cdot4\cdot2\cdot10=\left(25\cdot4\right)\cdot\left(5\cdot2\cdot10\right)=100\cdot100=100^2=10^4\)

3)   \(2\cdot10\cdot10\cdot3\cdot5\cdot10=3\cdot10\cdot10\cdot10\cdot10=3\cdot10^4\)

4)  \(a\cdot a\cdot a+b\cdot b\cdot b\cdot b=a^3+b^4\)

Viết gọn các biểu thức sau bằng cách dùng lũy thừa

1) 12.12.2.12.6

=> 12 . 12 . 12 . (2 . 6)

 = 12 . 12 . 12 . 12 . 12 = 12⁵

2) 25.5.4.2.10

=> ( 25 . 4 ) . ( 2 . 5 . 10 )

  = 100 . 100 = 100²

3) 2.10.10.3.5.10

=> ( 2 . 5 ) . 10 . 10 . 10 . 3 

  = 10 . 10 . 10 . 10 . 3 = 10⁴ . 3

4) a.a.a cộng b.b.b.b

=> a³ + b⁴

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