Question

What is the solution set of the equation 3x^2 =48

Answer 1

Answer:

x = ±4

Step-by-step explanation:

3x^2 =48

Divide by 3

3x^2/3 = 48/3

x^2 = 16

Take the square root of each side

sqrt(x^2) = ±sqrt(16)

x = ±4

Answer 2

Answer:

x = ± 4

Step-by-step explanation:

You need to get $x^2$ by itself, and to do this, you divide both sides by 3, like so:

$3x^2 = 48\\x^2 = 16$

Now take the square root of both sides:

$\sqrt{x^2} =\sqrt{16}$

x = ± 4