Question

5^5/5^x=5^18

 

Answer 1

`( 5^5 )/( 5^x ) = 5^{18}`

`<=> 5^{5-x} = 5^{18}`

`=> 5-x=18`

`<=> x=5-18`

`<=> x=-13`

Vậy `x=-13`

Answer 2

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Answer 3

hum bít

 

Answer 4

\(\dfrac{5^5}{5^x}\) = 5¹⁸

5^x = 5⁵ : 5¹⁸

5^x = 5^-13 \(\Rightarrow\)x = -13