8i^2-25i+28=0

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Solution for 8i^2-25i+28=0 equation:


Simplifying
8i2 + -25i + 28 = 0

Reorder the terms:
28 + -25i + 8i2 = 0

Solving
28 + -25i + 8i2 = 0

Solving for variable 'i'.

Begin completing the square.  Divide all terms by
8 the coefficient of the squared term: 

Divide each side by '8'.
3.5 + -3.125i + i2 = 0

Move the constant term to the right:

Add '-3.5' to each side of the equation.
3.5 + -3.125i + -3.5 + i2 = 0 + -3.5

Reorder the terms:
3.5 + -3.5 + -3.125i + i2 = 0 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + -3.125i + i2 = 0 + -3.5
-3.125i + i2 = 0 + -3.5

Combine like terms: 0 + -3.5 = -3.5
-3.125i + i2 = -3.5

The i term is -3.125i.  Take half its coefficient (-1.5625).
Square it (2.44140625) and add it to both sides.

Add '2.44140625' to each side of the equation.
-3.125i + 2.44140625 + i2 = -3.5 + 2.44140625

Reorder the terms:
2.44140625 + -3.125i + i2 = -3.5 + 2.44140625

Combine like terms: -3.5 + 2.44140625 = -1.05859375
2.44140625 + -3.125i + i2 = -1.05859375

Factor a perfect square on the left side:
(i + -1.5625)(i + -1.5625) = -1.05859375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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