Meredith solved a quadratic equation. Her work is shown below.
In which step did Meredith make an error?
\begin{aligned} 2(x+4)^2&=242 \\\\ (x+4)^2&=121&\text{Step }1 \\\\ x+4&=11&\text{Step }2 \\\\ x&=7&\text{Step }3 \end{aligned}
2(x+4)
2

(x+4)
2

x+4
x
​

=242
=121
=11
=7
​

Step 1
Step 2
Step 3
​