Question

4^x + 4^{x + 1} = 4160

Answer 1

4^x+4^x+1=4160

4^x+4^x.4=4160

4^x(1+4)=4160

4^x.5=4160

4^x=832

Answer 2

sai de bai 

Answer 3

\(4^x+4^{x+1}=4160\Leftrightarrow4^x+4^x.4=4160\)

\(\Leftrightarrow4^x\left(4+1\right)=4160\Leftrightarrow4^x.5=4160\)

\(\Leftrightarrow4^x=4160:5\Leftrightarrow4^x=832\)

\(\Leftrightarrow4^x=4^3.13\)

Vì \(832=4^3.13\Rightarrow\)x không có giá trị