289+64=x^2

Solution for 289+64=x^2 equation:

Simplifying
289 + 64 = x2

Combine like terms: 289 + 64 = 353
353 = x2

Solving
353 = x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
353 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
353 + -1x2 = 0

Add '-353' to each side of the equation.
353 + -353 + -1x2 = 0 + -353

Combine like terms: 353 + -353 = 0
0 + -1x2 = 0 + -353
-1x2 = 0 + -353

Combine like terms: 0 + -353 = -353
-1x2 = -353

Divide each side by '-1'.
x2 = 353

Simplifying
x2 = 353

Take the square root of each side:
x = {-18.788294228, 18.788294228}