4000-(c*c)=3831

Solution for 4000-(c*c)=3831 equation:

Simplifying
4000 + -1(c * c) = 3831

Multiply c * c
4000 + -1(c2) = 3831

Solving
4000 + -1c2 = 3831

Solving for variable 'c'.

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

Add '-4000' to each side of the equation.
4000 + -4000 + -1c2 = 3831 + -4000

Combine like terms: 4000 + -4000 = 0
0 + -1c2 = 3831 + -4000
-1c2 = 3831 + -4000

Combine like terms: 3831 + -4000 = -169
-1c2 = -169

Divide each side by '-1'.
c2 = 169

Simplifying
c2 = 169

Take the square root of each side:
c = {-13, 13}