Question

3^x+1 + 1 = 244

Answer 1

$3^{x+1}+1=244$

$\Rightarrow3^{x+1}=244-1$

$\Rightarrow3^{x+1}=243$

$\Rightarrow3^{x+1}=3^5$

$\Rightarrow x+1=5$

$\Rightarrow x=5-1$

$\Rightarrow x=4$

Vậy: $x=4$.

Answer 2

3^x+1 +1 = 244
3^x+1= 243
3^x+1 = 3⁵
x+1 = 5
x = 4

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