5+12=a^2

Solution for 5+12=a^2 equation:

Simplifying
5 + 12 = a2

Combine like terms: 5 + 12 = 17
17 = a2

Solving
17 = a2

Solving for variable 'a'.

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

Add '-1a2' to each side of the equation.
17 + -1a2 = a2 + -1a2

Combine like terms: a2 + -1a2 = 0
17 + -1a2 = 0

Add '-17' to each side of the equation.
17 + -17 + -1a2 = 0 + -17

Combine like terms: 17 + -17 = 0
0 + -1a2 = 0 + -17
-1a2 = 0 + -17

Combine like terms: 0 + -17 = -17
-1a2 = -17

Divide each side by '-1'.
a2 = 17

Simplifying
a2 = 17

Take the square root of each side:
a = {-4.123105626, 4.123105626}