200=a^2

Solution for 200=a^2 equation:

Simplifying
200 = a2

Solving
200 = 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.
200 + -1a2 = a2 + -1a2

Combine like terms: a2 + -1a2 = 0
200 + -1a2 = 0

Add '-200' to each side of the equation.
200 + -200 + -1a2 = 0 + -200

Combine like terms: 200 + -200 = 0
0 + -1a2 = 0 + -200
-1a2 = 0 + -200

Combine like terms: 0 + -200 = -200
-1a2 = -200

Divide each side by '-1'.
a2 = 200

Simplifying
a2 = 200

Take the square root of each side:
a = {-14.142135624, 14.142135624}