7x^2-280=0

Solution for 7x^2-280=0 equation:

Simplifying
7x2 + -280 = 0

Reorder the terms:
-280 + 7x2 = 0

Solving
-280 + 7x2 = 0

Solving for variable 'x'.

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

Add '280' to each side of the equation.
-280 + 280 + 7x2 = 0 + 280

Combine like terms: -280 + 280 = 0
0 + 7x2 = 0 + 280
7x2 = 0 + 280

Combine like terms: 0 + 280 = 280
7x2 = 280

Divide each side by '7'.
x2 = 40

Simplifying
x2 = 40

Take the square root of each side:
x = {-6.32455532, 6.32455532}