Question

adratics. calculators are allowed.
$x^2 = 49$
$x^2 = 81$

Explanation:

Step1: Take square root of both sides

$x = \pm\sqrt{49}$

Step2: Solve for x

$x = \pm7$

Step3: Take square root of both sides

$x = \pm\sqrt{81}$

Step4: Solve for x

$x = \pm9$

Answer:

For $x^2=49$: $x=7$ or $x=-7$
For $x^2=81$: $x=9$ or $x=-9$