-5x^2+39x-201.4=0

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Solution for -5x^2+39x-201.4=0 equation:


Simplifying
-5x2 + 39x + -201.4 = 0

Reorder the terms:
-201.4 + 39x + -5x2 = 0

Solving
-201.4 + 39x + -5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
40.28 + -7.8x + x2 = 0

Move the constant term to the right:

Add '-40.28' to each side of the equation.
40.28 + -7.8x + -40.28 + x2 = 0 + -40.28

Reorder the terms:
40.28 + -40.28 + -7.8x + x2 = 0 + -40.28

Combine like terms: 40.28 + -40.28 = 0.00
0.00 + -7.8x + x2 = 0 + -40.28
-7.8x + x2 = 0 + -40.28

Combine like terms: 0 + -40.28 = -40.28
-7.8x + x2 = -40.28

The x term is -7.8x.  Take half its coefficient (-3.9).
Square it (15.21) and add it to both sides.

Add '15.21' to each side of the equation.
-7.8x + 15.21 + x2 = -40.28 + 15.21

Reorder the terms:
15.21 + -7.8x + x2 = -40.28 + 15.21

Combine like terms: -40.28 + 15.21 = -25.07
15.21 + -7.8x + x2 = -25.07

Factor a perfect square on the left side:
(x + -3.9)(x + -3.9) = -25.07

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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