Question

2^x.2^x+3=64²:2⁵

Answer 1

\(2^x.2^{x+3}=64^2:2^5\)

\(2^x.2^x.2^3=2^{12}:2^5\)

\(2^x.\left(1+8\right)=2^7\)

\(2^x.9=2^7\)

\(\Rightarrow x=\varnothing\)

Answer 2

\(2^{2x+3}=64^2:2^5\)

\(\Leftrightarrow2^{2x+3}=2^7\)

hay x=2

Answer 3

\(2^x.2^{x+3}=64^2:2^5\)

\(\Leftrightarrow\)\(2^x.2^{x+3}=128\)

\(\Leftrightarrow\)\(2^x.2^{x+3}=2^7\)

\(\Leftrightarrow\)\(x+x+3=7\)

\(\Leftrightarrow\)\(x=2\)