Question

cảm ơn ạ

Answer 1

b) \(\Rightarrow3\left(-2\right)^{5x+13}=-24\)

\(\Rightarrow\left(-2\right)^{5x+13}=-8\)

\(\Rightarrow5x+13=3\Rightarrow5x=-10\Rightarrow x=-2\)

c) \(\Rightarrow\left(x+4\right)^2=36\)

\(\Rightarrow\left[{}\begin{matrix}x+4=6\\x+4=-6\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}x=2\\x=-10\end{matrix}\right.\)