a^2+2-210=0

Solution for a^2+2-210=0 equation:

Simplifying
a2 + 2 + -210 = 0

Reorder the terms:
2 + -210 + a2 = 0

Combine like terms: 2 + -210 = -208
-208 + a2 = 0

Solving
-208 + a2 = 0

Solving for variable 'a'.

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

Add '208' to each side of the equation.
-208 + 208 + a2 = 0 + 208

Combine like terms: -208 + 208 = 0
0 + a2 = 0 + 208
a2 = 0 + 208

Combine like terms: 0 + 208 = 208
a2 = 208

Simplifying
a2 = 208

Take the square root of each side:
a = {-14.422205102, 14.422205102}