Question

\(^{3^{2x+1}=81}\)

Giải nhah nha

Answer 1

\(3^{2x+1}=81\)

\(=>3^{2x+1}=3^4\)

\(=>2x+1=4\)

\(2x=4-1\)

\(2x=3\)

\(=>x=\frac{3}{2}\)

\(=>x=1,5\)

Vậy x = 1,5

Answer 2

\(3^{2x+1}=81\)

\(\Rightarrow3^{2x+1}=3^4\)

\(\Rightarrow2x+1=4\)

\(\Rightarrow2x=4-1=3\)

\(\Rightarrow x=3:2=1,5\)

Vậy : \(x=1,5\)

Answer 3

3^2x+1=81

3^2x+1=3^4

=>2x+1=4

2x=4-1

2x=3

x=3:2

x=1,5

Vậy x=1,5