3*3+7*7=x*x

Solution for 3*3+7*7=x*x equation:

Simplifying
3 * 3 + 7 * 7 = x * x

Multiply 3 * 3
9 + 7 * 7 = x * x

Multiply 7 * 7
9 + 49 = x * x

Combine like terms: 9 + 49 = 58
58 = x * x

Multiply x * x
58 = x2

Solving
58 = 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.
58 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
58 + -1x2 = 0

Add '-58' to each side of the equation.
58 + -58 + -1x2 = 0 + -58

Combine like terms: 58 + -58 = 0
0 + -1x2 = 0 + -58
-1x2 = 0 + -58

Combine like terms: 0 + -58 = -58
-1x2 = -58

Divide each side by '-1'.
x2 = 58

Simplifying
x2 = 58

Take the square root of each side:
x = {-7.615773106, 7.615773106}