9+15=c*c

Solution for 9+15=c*c equation:

Simplifying
9 + 15 = c * c

Combine like terms: 9 + 15 = 24
24 = c * c

Multiply c * c
24 = c2

Solving
24 = 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.
24 + -1c2 = c2 + -1c2

Combine like terms: c2 + -1c2 = 0
24 + -1c2 = 0

Add '-24' to each side of the equation.
24 + -24 + -1c2 = 0 + -24

Combine like terms: 24 + -24 = 0
0 + -1c2 = 0 + -24
-1c2 = 0 + -24

Combine like terms: 0 + -24 = -24
-1c2 = -24

Divide each side by '-1'.
c2 = 24

Simplifying
c2 = 24

Take the square root of each side:
c = {-4.898979486, 4.898979486}