a^2+1=2

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Solution for a^2+1=2 equation: 


Simplifying
a2 + 1 = 2

Reorder the terms:
1 + a2 = 2

Solving
1 + a2 = 2

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 = 2 + -1

Combine like terms: 1 + -1 = 0
0 + a2 = 2 + -1
a2 = 2 + -1

Combine like terms: 2 + -1 = 1
a2 = 1

Simplifying
a2 = 1

Take the square root of each side:
a = {-1, 1}

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