3=4.9x^2

Solution for 3=4.9x^2 equation:

Simplifying
3 = 4.9x2

Solving
3 = 4.9x2

Solving for variable 'x'.

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

Add '-4.9x2' to each side of the equation.
3 + -4.9x2 = 4.9x2 + -4.9x2

Combine like terms: 4.9x2 + -4.9x2 = 0.0
3 + -4.9x2 = 0.0

Add '-3' to each side of the equation.
3 + -3 + -4.9x2 = 0.0 + -3

Combine like terms: 3 + -3 = 0
0 + -4.9x2 = 0.0 + -3
-4.9x2 = 0.0 + -3

Combine like terms: 0.0 + -3 = -3
-4.9x2 = -3

Divide each side by '-4.9'.
x2 = 0.612244898

Simplifying
x2 = 0.612244898

Take the square root of each side:
x = {-0.782460796, 0.782460796}