Question

tìm x biết 3^x+2-3^x=24

Answer 1

3^x+2-3^x = 24

=>3^x . 3² - 3^x = 24

=>3^x . 8 = 24

=>3^x = 3

^{=>x = 1}

Answer 2

\(3^{x+2}-3^x=24\)

\(3^x\left(3^2-1\right)=24\)

\(3^x.8=24\)

\(\Rightarrow3^x=3\)

\(\Rightarrow x=1\)

Vậy x=1

Answer 3

12 phút trước

3x+2-3x = 24

=>3x . 32 - 3x = 24

=>3x . 8 = 24

=>3x = 3

=>x = 1

Answer 4

x=1