64+225=c^2

Solution for 64+225=c^2 equation:

Simplifying
64 + 225 = c2

Combine like terms: 64 + 225 = 289
289 = c2

Solving
289 = c2

Solving for variable 'c'.

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

Add '-1c2' to each side of the equation.
289 + -1c2 = c2 + -1c2

Combine like terms: c2 + -1c2 = 0
289 + -1c2 = 0

Add '-289' to each side of the equation.
289 + -289 + -1c2 = 0 + -289

Combine like terms: 289 + -289 = 0
0 + -1c2 = 0 + -289
-1c2 = 0 + -289

Combine like terms: 0 + -289 = -289
-1c2 = -289

Divide each side by '-1'.
c2 = 289

Simplifying
c2 = 289

Take the square root of each side:
c = {-17, 17}