.75=4.9x^2

Solution for .75=4.9x^2 equation:

Simplifying
0.75 = 4.9x2

Solving
0.75 = 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.
0.75 + -4.9x2 = 4.9x2 + -4.9x2

Combine like terms: 4.9x2 + -4.9x2 = 0.0
0.75 + -4.9x2 = 0.0

Add '-0.75' to each side of the equation.
0.75 + -0.75 + -4.9x2 = 0.0 + -0.75

Combine like terms: 0.75 + -0.75 = 0.00
0.00 + -4.9x2 = 0.0 + -0.75
-4.9x2 = 0.0 + -0.75

Combine like terms: 0.0 + -0.75 = -0.75
-4.9x2 = -0.75

Divide each side by '-4.9'.
x2 = 0.1530612245

Simplifying
x2 = 0.1530612245

Take the square root of each side:
x = {-0.391230398, 0.391230398}