3=81X^2

Solution for 3=81X^2 equation:

Simplifying
3 = 81X2

Solving
3 = 81X2

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '-81X2' to each side of the equation.
3 + -81X2 = 81X2 + -81X2

Combine like terms: 81X2 + -81X2 = 0
3 + -81X2 = 0

Add '-3' to each side of the equation.
3 + -3 + -81X2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -81X2 = 0 + -3
-81X2 = 0 + -3

Combine like terms: 0 + -3 = -3
-81X2 = -3

Divide each side by '-81'.
X2 = 0.03703703704

Simplifying
X2 = 0.03703703704

Take the square root of each side:
X = {-0.19245009, 0.19245009}