-16x^2+400=0

Solution for -16x^2+400=0 equation:

Simplifying
-16x2 + 400 = 0

Reorder the terms:
400 + -16x2 = 0

Solving
400 + -16x2 = 0

Solving for variable 'x'.

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

Add '-400' to each side of the equation.
400 + -400 + -16x2 = 0 + -400

Combine like terms: 400 + -400 = 0
0 + -16x2 = 0 + -400
-16x2 = 0 + -400

Combine like terms: 0 + -400 = -400
-16x2 = -400

Divide each side by '-16'.
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5}