8x^2+25=28x

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Solution for 8x^2+25=28x equation:


Simplifying
8x2 + 25 = 28x

Reorder the terms:
25 + 8x2 = 28x

Solving
25 + 8x2 = 28x

Solving for variable 'x'.

Reorder the terms:
25 + -28x + 8x2 = 28x + -28x

Combine like terms: 28x + -28x = 0
25 + -28x + 8x2 = 0

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

Divide each side by '8'.
3.125 + -3.5x + x2 = 0

Move the constant term to the right:

Add '-3.125' to each side of the equation.
3.125 + -3.5x + -3.125 + x2 = 0 + -3.125

Reorder the terms:
3.125 + -3.125 + -3.5x + x2 = 0 + -3.125

Combine like terms: 3.125 + -3.125 = 0.000
0.000 + -3.5x + x2 = 0 + -3.125
-3.5x + x2 = 0 + -3.125

Combine like terms: 0 + -3.125 = -3.125
-3.5x + x2 = -3.125

The x term is -3.5x.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5x + 3.0625 + x2 = -3.125 + 3.0625

Reorder the terms:
3.0625 + -3.5x + x2 = -3.125 + 3.0625

Combine like terms: -3.125 + 3.0625 = -0.0625
3.0625 + -3.5x + x2 = -0.0625

Factor a perfect square on the left side:
(x + -1.75)(x + -1.75) = -0.0625

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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