-x^2+14x-57=0

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Solution for -x^2+14x-57=0 equation:


Simplifying
-1x2 + 14x + -57 = 0

Reorder the terms:
-57 + 14x + -1x2 = 0

Solving
-57 + 14x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
57 + -14x + x2 = 0

Move the constant term to the right:

Add '-57' to each side of the equation.
57 + -14x + -57 + x2 = 0 + -57

Reorder the terms:
57 + -57 + -14x + x2 = 0 + -57

Combine like terms: 57 + -57 = 0
0 + -14x + x2 = 0 + -57
-14x + x2 = 0 + -57

Combine like terms: 0 + -57 = -57
-14x + x2 = -57

The x term is -14x.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14x + 49 + x2 = -57 + 49

Reorder the terms:
49 + -14x + x2 = -57 + 49

Combine like terms: -57 + 49 = -8
49 + -14x + x2 = -8

Factor a perfect square on the left side:
(x + -7)(x + -7) = -8

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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