100-13x^2=0

Solution for 100-13x^2=0 equation:

Simplifying
100 + -13x2 = 0

Solving
100 + -13x2 = 0

Solving for variable 'x'.

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

Add '-100' to each side of the equation.
100 + -100 + -13x2 = 0 + -100

Combine like terms: 100 + -100 = 0
0 + -13x2 = 0 + -100
-13x2 = 0 + -100

Combine like terms: 0 + -100 = -100
-13x2 = -100

Divide each side by '-13'.
x2 = 7.692307692

Simplifying
x2 = 7.692307692

Take the square root of each side:
x = {-2.773500981, 2.773500981}