Question

 ai giup minh voi

5^3x:5⁵=5²⁰²⁰:5²⁰¹⁶

Answer 1

\(5^{3x}:5^5=5^{2020}:5^{2016}\)

\(5^{3x-5}=5^{2020-2016}=5^4\)

\(3x-5=4\Leftrightarrow3x=4+5=9\Leftrightarrow x=9:3=3\)

Answer 2

\(\frac{5^{3x}}{5^5}=\frac{5^{2020}}{5^{2016}}=5^{2020-2016}=5^4\Rightarrow5^{3x}=5^4.5^5=5^{4+5}=5^9\Rightarrow x=3\)

Answer 3

5^3x:5⁵=5²⁰²⁰:5²⁰¹⁶

5^3x:5⁵=5⁴

5^3x=5⁵.5⁴

5^3x=5⁹

x.3=9

x   =9:3

x   =3

Đơn giản lắm nha bạn !

Answer 4

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