### Home > CCA2 > Chapter 2 > Lesson 2.2.2 > Problem2-113

2-113.

Solve each equation for $x$ (that is, put it in $x=$ ____ form).

1. $y=2(x−17)^2$

Divide both sides by $2$.

$(\textit{x}-17)^{2}= \frac{ \textit{y} }{2 }$

Now find the square root of both sides.

$\textit{x}-17=\pm \sqrt{ \frac{ \textit{y} }{2 } }$

Now finish solving.

$\textit{x}=\pm \sqrt{ \frac{ \textit{y} }{2 } } +17$

1. $y + 7 = \sqrt [ 3 ] { x + 5 }$

Raise both sides of the equation to the $3^{rd}$ power, then subtract to isolate $x$. It is not necessary to expand $(x+3)^3$.