5x-10=x^2+71

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Solution for 5x-10=x^2+71 equation:


Simplifying
5x + -10 = x2 + 71

Reorder the terms:
-10 + 5x = x2 + 71

Reorder the terms:
-10 + 5x = 71 + x2

Solving
-10 + 5x = 71 + x2

Solving for variable 'x'.

Reorder the terms:
-10 + -71 + 5x + -1x2 = 71 + x2 + -71 + -1x2

Combine like terms: -10 + -71 = -81
-81 + 5x + -1x2 = 71 + x2 + -71 + -1x2

Reorder the terms:
-81 + 5x + -1x2 = 71 + -71 + x2 + -1x2

Combine like terms: 71 + -71 = 0
-81 + 5x + -1x2 = 0 + x2 + -1x2
-81 + 5x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-81 + 5x + -1x2 = 0

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

Divide each side by '-1'.
81 + -5x + x2 = 0

Move the constant term to the right:

Add '-81' to each side of the equation.
81 + -5x + -81 + x2 = 0 + -81

Reorder the terms:
81 + -81 + -5x + x2 = 0 + -81

Combine like terms: 81 + -81 = 0
0 + -5x + x2 = 0 + -81
-5x + x2 = 0 + -81

Combine like terms: 0 + -81 = -81
-5x + x2 = -81

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 = -81 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -81 + 6.25

Combine like terms: -81 + 6.25 = -74.75
6.25 + -5x + x2 = -74.75

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = -74.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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