3x-7=x^2-2x+11

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Solution for 3x-7=x^2-2x+11 equation:


Simplifying
3x + -7 = x2 + -2x + 11

Reorder the terms:
-7 + 3x = x2 + -2x + 11

Reorder the terms:
-7 + 3x = 11 + -2x + x2

Solving
-7 + 3x = 11 + -2x + x2

Solving for variable 'x'.

Reorder the terms:
-7 + -11 + 3x + 2x + -1x2 = 11 + -2x + x2 + -11 + 2x + -1x2

Combine like terms: -7 + -11 = -18
-18 + 3x + 2x + -1x2 = 11 + -2x + x2 + -11 + 2x + -1x2

Combine like terms: 3x + 2x = 5x
-18 + 5x + -1x2 = 11 + -2x + x2 + -11 + 2x + -1x2

Reorder the terms:
-18 + 5x + -1x2 = 11 + -11 + -2x + 2x + x2 + -1x2

Combine like terms: 11 + -11 = 0
-18 + 5x + -1x2 = 0 + -2x + 2x + x2 + -1x2
-18 + 5x + -1x2 = -2x + 2x + x2 + -1x2

Combine like terms: -2x + 2x = 0
-18 + 5x + -1x2 = 0 + x2 + -1x2
-18 + 5x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-18 + 5x + -1x2 = 0

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

Divide each side by '-1'.
18 + -5x + x2 = 0

Move the constant term to the right:

Add '-18' to each side of the equation.
18 + -5x + -18 + x2 = 0 + -18

Reorder the terms:
18 + -18 + -5x + x2 = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -5x + x2 = 0 + -18
-5x + x2 = 0 + -18

Combine like terms: 0 + -18 = -18
-5x + x2 = -18

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = -18 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -18 + 6.25

Combine like terms: -18 + 6.25 = -11.75
6.25 + -5x + x2 = -11.75

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = -11.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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