59x+x^2=90

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Solution for 59x+x^2=90 equation:


Simplifying
59x + x2 = 90

Solving
59x + x2 = 90

Solving for variable 'x'.

Reorder the terms:
-90 + 59x + x2 = 90 + -90

Combine like terms: 90 + -90 = 0
-90 + 59x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '90' to each side of the equation.
-90 + 59x + 90 + x2 = 0 + 90

Reorder the terms:
-90 + 90 + 59x + x2 = 0 + 90

Combine like terms: -90 + 90 = 0
0 + 59x + x2 = 0 + 90
59x + x2 = 0 + 90

Combine like terms: 0 + 90 = 90
59x + x2 = 90

The x term is 59x.  Take half its coefficient (29.5).
Square it (870.25) and add it to both sides.

Add '870.25' to each side of the equation.
59x + 870.25 + x2 = 90 + 870.25

Reorder the terms:
870.25 + 59x + x2 = 90 + 870.25

Combine like terms: 90 + 870.25 = 960.25
870.25 + 59x + x2 = 960.25

Factor a perfect square on the left side:
(x + 29.5)(x + 29.5) = 960.25

Calculate the square root of the right side: 30.987900865

Break this problem into two subproblems by setting 
(x + 29.5) equal to 30.987900865 and -30.987900865.

Subproblem 1

x + 29.5 = 30.987900865 Simplifying x + 29.5 = 30.987900865 Reorder the terms: 29.5 + x = 30.987900865 Solving 29.5 + x = 30.987900865 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-29.5' to each side of the equation. 29.5 + -29.5 + x = 30.987900865 + -29.5 Combine like terms: 29.5 + -29.5 = 0.0 0.0 + x = 30.987900865 + -29.5 x = 30.987900865 + -29.5 Combine like terms: 30.987900865 + -29.5 = 1.487900865 x = 1.487900865 Simplifying x = 1.487900865

Subproblem 2

x + 29.5 = -30.987900865 Simplifying x + 29.5 = -30.987900865 Reorder the terms: 29.5 + x = -30.987900865 Solving 29.5 + x = -30.987900865 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-29.5' to each side of the equation. 29.5 + -29.5 + x = -30.987900865 + -29.5 Combine like terms: 29.5 + -29.5 = 0.0 0.0 + x = -30.987900865 + -29.5 x = -30.987900865 + -29.5 Combine like terms: -30.987900865 + -29.5 = -60.487900865 x = -60.487900865 Simplifying x = -60.487900865

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.487900865, -60.487900865}

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