5000-x^2=4000

Solution for 5000-x^2=4000 equation:

Simplifying
5000 + -1x2 = 4000

Solving
5000 + -1x2 = 4000

Solving for variable 'x'.

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

Add '-5000' to each side of the equation.
5000 + -5000 + -1x2 = 4000 + -5000

Combine like terms: 5000 + -5000 = 0
0 + -1x2 = 4000 + -5000
-1x2 = 4000 + -5000

Combine like terms: 4000 + -5000 = -1000
-1x2 = -1000

Divide each side by '-1'.
x2 = 1000

Simplifying
x2 = 1000

Take the square root of each side:
x = {-31.622776602, 31.622776602}