WeBWorK using host: https://webwork-ptx.aimath.org, format: simple seed: 114

Follow the steps to solve by completing the square: $x^2 - 1 = 3x\text{.}$

Complete the square on the left:
$p=\dfrac{1}{2}(-3)={}$ , $p^2={}$
Add $p^2$ to both sides.
$=$

Write the left side as a perfect square; simplify the right side.
$\large($ $\large)^2=$

Solve by extracting roots.
Solutions: $x=$
List all the values that are solutions. Use a comma to separate different solutions.

Find approximations to two decimal places for the solutions.

Solutions: $x=$

List all the values that are solutions. Use a comma to separate different solutions.

Graph the parabola $y = x^2 - 3x - 1$ in the window

$\begin{aligned}[t] \text{Xmin} \amp = -4.7 \amp\amp \text{Xmax} = 4.7\\ \text{Ymin} \amp = -5 \amp\amp \text{Ymax} = 5 \end{aligned}$