Question

6 mũ 2-(x+3)=45

Answer 1

\(6^2-\left(x+3\right)=45\)

\(\Leftrightarrow x+3=6^2-45=36-45\)

\(\Leftrightarrow x+3=-9\)

\(\Leftrightarrow x=-9-3\)

\(\Leftrightarrow x=-12\)

Vậy : \(x=-12\)

Answer 2

\(6^2-\left(x+3\right)=45\)

⇔ \(36-\left(x+3\right)=45\)

⇔ \(x+3=36-45\)

⇔ \(x+3=-9\)

⇔ \(x\) \(=-9-3\)

⇔ \(x\) \(=-12\)

Vậy \(x=-12\)