Question

1.1 - solving quadrativalue: 6solve the quadratic by taking square roots. write your answer with no spaces as x=a,-a where a and -a are the values you found when solving.$3x^2 - 7 = 140$#2 / 3

Explanation:

Step1: Isolate the $x^2$ term

Add 7 to both sides:
$3x^2 - 7 + 7 = 140 + 7$
$3x^2 = 147$

Step2: Solve for $x^2$

Divide both sides by 3:
$x^2 = \frac{147}{3}$
$x^2 = 49$

Step3: Take square roots of both sides

$x = \pm\sqrt{49}$
$x = \pm7$

Answer:

x=7,-7