7x^2-847=0

Solution for 7x^2-847=0 equation:

Simplifying
7x2 + -847 = 0

Reorder the terms:
-847 + 7x2 = 0

Solving
-847 + 7x2 = 0

Solving for variable 'x'.

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

Add '847' to each side of the equation.
-847 + 847 + 7x2 = 0 + 847

Combine like terms: -847 + 847 = 0
0 + 7x2 = 0 + 847
7x2 = 0 + 847

Combine like terms: 0 + 847 = 847
7x2 = 847

Divide each side by '7'.
x2 = 121

Simplifying
x2 = 121

Take the square root of each side:
x = {-11, 11}