10x^2-4000=0

Solution for 10x^2-4000=0 equation:

Simplifying
10x2 + -4000 = 0

Reorder the terms:
-4000 + 10x2 = 0

Solving
-4000 + 10x2 = 0

Solving for variable 'x'.

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

Add '4000' to each side of the equation.
-4000 + 4000 + 10x2 = 0 + 4000

Combine like terms: -4000 + 4000 = 0
0 + 10x2 = 0 + 4000
10x2 = 0 + 4000

Combine like terms: 0 + 4000 = 4000
10x2 = 4000

Divide each side by '10'.
x2 = 400

Simplifying
x2 = 400

Take the square root of each side:
x = {-20, 20}