3x^2 = 400

1 answer

To find the value of x, we need to solve for x in the given equation:

3x^2 = 400

Divide both sides by 3 to isolate x^2:

x^2 = 400 / 3
x^2 = 133.33

Take the square root of both sides to solve for x:

x = √133.33
x ≈ 11.55

Therefore, x is approximately 11.55.