Question

now, use the method you chose to solve the quadratic equation 432 = 3x² use the sketchpad if needed to show your work. x = x = correct? ×

Explanation:

Step1: Isolate $x^2$ term

Divide both sides by 3:
$\frac{432}{3} = \frac{3x^2}{3}$
$144 = x^2$

Step2: Solve for $x$

Take square root of both sides:
$x = \pm\sqrt{144}$
$x = \pm12$

Answer:

$x = 12$
$x = -12$