4+2a^2=5

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Solution for 4+2a^2=5 equation: 


Simplifying
4 + 2a2 = 5

Solving
4 + 2a2 = 5

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + 2a2 = 5 + -4

Combine like terms: 4 + -4 = 0
0 + 2a2 = 5 + -4
2a2 = 5 + -4

Combine like terms: 5 + -4 = 1
2a2 = 1

Divide each side by '2'.
a2 = 0.5

Simplifying
a2 = 0.5

Take the square root of each side:
a = {-0.707106781, 0.707106781}

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