(x+5)^2=16
(x+5)^2=4^2
=>x+5=4
x=-1
\(\Rightarrow\left(x+5\right)^2=4^2\)
\(\Rightarrow x+5=4\)( vì cùng cơ số 4 > 1 )
\(\Rightarrow x=4-5\)
\(\Rightarrow x=-1\)
\(\left(x+5\right)^2=16\)
\(\Rightarrow\left(x+5\right)^2=4^2\)
\(\Rightarrow x+5=4\)
\(\Rightarrow x=4-5\)
\(\Rightarrow x=-1\)
(x+5)\(^2\)=16
(x+5)\(^2\) =4\(^2\)
=)x+5=4
x=4-5
x=-1
(x+5)^2=16
(x+5)^2=(-4)^2=4^2
(X+5)=-4 hoặc x+5=4
x=(-4)-5 x=4-5
x=-9 hoặc x=-1
Vậy x=-9 hoặc x=-1
(x + 5)2 = 16
=>\(\orbr{\begin{cases}\left(x+5\right)^2=4^2\\\left(x+5\right)^2=-4^2\end{cases}\Rightarrow\orbr{\begin{cases}x+5=4\\x+5=-4\end{cases}}}\)
\(\Rightarrow\orbr{\begin{cases}x=-1\\x=-9\end{cases}}\)