-2x^2+98=0

Solution for -2x^2+98=0 equation:

Simplifying
-2x2 + 98 = 0

Reorder the terms:
98 + -2x2 = 0

Solving
98 + -2x2 = 0

Solving for variable 'x'.

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

Add '-98' to each side of the equation.
98 + -98 + -2x2 = 0 + -98

Combine like terms: 98 + -98 = 0
0 + -2x2 = 0 + -98
-2x2 = 0 + -98

Combine like terms: 0 + -98 = -98
-2x2 = -98

Divide each side by '-2'.
x2 = 49

Simplifying
x2 = 49

Take the square root of each side:
x = {-7, 7}