4=x^2-6x+31

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Solution for 4=x^2-6x+31 equation:


Simplifying
4 = x2 + -6x + 31

Reorder the terms:
4 = 31 + -6x + x2

Solving
4 = 31 + -6x + x2

Solving for variable 'x'.

Combine like terms: 4 + -31 = -27
-27 + 6x + -1x2 = 31 + -6x + x2 + -31 + 6x + -1x2

Reorder the terms:
-27 + 6x + -1x2 = 31 + -31 + -6x + 6x + x2 + -1x2

Combine like terms: 31 + -31 = 0
-27 + 6x + -1x2 = 0 + -6x + 6x + x2 + -1x2
-27 + 6x + -1x2 = -6x + 6x + x2 + -1x2

Combine like terms: -6x + 6x = 0
-27 + 6x + -1x2 = 0 + x2 + -1x2
-27 + 6x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-27 + 6x + -1x2 = 0

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

Divide each side by '-1'.
27 + -6x + x2 = 0

Move the constant term to the right:

Add '-27' to each side of the equation.
27 + -6x + -27 + x2 = 0 + -27

Reorder the terms:
27 + -27 + -6x + x2 = 0 + -27

Combine like terms: 27 + -27 = 0
0 + -6x + x2 = 0 + -27
-6x + x2 = 0 + -27

Combine like terms: 0 + -27 = -27
-6x + x2 = -27

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = -27 + 9

Reorder the terms:
9 + -6x + x2 = -27 + 9

Combine like terms: -27 + 9 = -18
9 + -6x + x2 = -18

Factor a perfect square on the left side:
(x + -3)(x + -3) = -18

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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