.49-x^2=0

Solution for .49-x^2=0 equation:

Simplifying
0.49 + -1x2 = 0

Solving
0.49 + -1x2 = 0

Solving for variable 'x'.

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

Add '-0.49' to each side of the equation.
0.49 + -0.49 + -1x2 = 0 + -0.49

Combine like terms: 0.49 + -0.49 = 0.00
0.00 + -1x2 = 0 + -0.49
-1x2 = 0 + -0.49

Combine like terms: 0 + -0.49 = -0.49
-1x2 = -0.49

Divide each side by '-1'.
x2 = 0.49

Simplifying
x2 = 0.49

Take the square root of each side:
x = {-0.7, 0.7}