Question

Tìm x : 4374 = 2.3^x+1

Answer 1

ta có : \(4374=2.3^{x+1}\Leftrightarrow3^{x+1}=\dfrac{4374}{2}=2187=3^7\)

\(\Rightarrow x+1=7\Leftrightarrow x=7-1=6\) vậy \(x=6\)

Answer 2

Ta có :

\(4374=2.3^{x+1}\Leftrightarrow3^{x+1}=\dfrac{4374}{2}=2187=3^7\)

\(\Rightarrow x+1=7\Leftrightarrow x=7-1=6\)vậy\(x=6\)

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