-4.9x^2+80=0

Solution for -4.9x^2+80=0 equation:

Simplifying
-4.9x2 + 80 = 0

Reorder the terms:
80 + -4.9x2 = 0

Solving
80 + -4.9x2 = 0

Solving for variable 'x'.

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

Add '-80' to each side of the equation.
80 + -80 + -4.9x2 = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -4.9x2 = 0 + -80
-4.9x2 = 0 + -80

Combine like terms: 0 + -80 = -80
-4.9x2 = -80

Divide each side by '-4.9'.
x2 = 16.32653061

Simplifying
x2 = 16.32653061

Take the square root of each side:
x = {-4.040610178, 4.040610178}