3.2x+2 + 2x = 52
=> 3.2x.22 + 2x = 52
=> 3.2x.4 + 2x = 52
=> 12.2x + 2x = 52
=> 2x.(12 + 1) = 52
=> 2x.13 = 52
=> 2x = 52 : 13
=> 2x = 4 = 22
=> x = 2
Vậy x = 2
\(3.2^{x+2}+2^x=52\)
\(\Rightarrow3.2^x.2^2+2^x=52\)
\(\Rightarrow2^x.\left(3.2^2+1\right)=52\)
\(\Rightarrow2^x.13=52\)
\(\Rightarrow2^x=4\)
\(\Rightarrow2^x=2^2\)
\(\Rightarrow x=2\)
Vậy \(x=2\)
x=2 nhé o O o Tiểu Thư Dễ Thương o O o nhớ tick nhé
\(3.2^x.2^2+2^x=52\)
\(2^x.(3+2^2+1)=52\)
\(2^x.(3+4+1)=52\)
\(2^x.13=52\)
\(2^x=52:13\)
\(2^x=4\)
\(2^x=2^2\)
\(x = 2\)
Vậy \(x = 2\)
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