.7-x^2=0

Solution for .7-x^2=0 equation:

Simplifying
0.7 + -1x2 = 0

Solving
0.7 + -1x2 = 0

Solving for variable 'x'.

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

Add '-0.7' to each side of the equation.
0.7 + -0.7 + -1x2 = 0 + -0.7

Combine like terms: 0.7 + -0.7 = 0.0
0.0 + -1x2 = 0 + -0.7
-1x2 = 0 + -0.7

Combine like terms: 0 + -0.7 = -0.7
-1x2 = -0.7

Divide each side by '-1'.
x2 = 0.7

Simplifying
x2 = 0.7

Take the square root of each side:
x = {-0.836660027, 0.836660027}