a^2+1=19

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Solution for a^2+1=19 equation: 


Simplifying
a2 + 1 = 19

Reorder the terms:
1 + a2 = 19

Solving
1 + a2 = 19

Solving for variable 'a'.

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

Add '-1' to each side of the equation.
1 + -1 + a2 = 19 + -1

Combine like terms: 1 + -1 = 0
0 + a2 = 19 + -1
a2 = 19 + -1

Combine like terms: 19 + -1 = 18
a2 = 18

Simplifying
a2 = 18

Take the square root of each side:
a = {-4.242640687, 4.242640687}

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