-x^2+3x+58=0

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Solution for -x^2+3x+58=0 equation:


Simplifying
-1x2 + 3x + 58 = 0

Reorder the terms:
58 + 3x + -1x2 = 0

Solving
58 + 3x + -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'.
-58 + -3x + x2 = 0

Move the constant term to the right:

Add '58' to each side of the equation.
-58 + -3x + 58 + x2 = 0 + 58

Reorder the terms:
-58 + 58 + -3x + x2 = 0 + 58

Combine like terms: -58 + 58 = 0
0 + -3x + x2 = 0 + 58
-3x + x2 = 0 + 58

Combine like terms: 0 + 58 = 58
-3x + x2 = 58

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = 58 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 58 + 2.25

Combine like terms: 58 + 2.25 = 60.25
2.25 + -3x + x2 = 60.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 60.25

Calculate the square root of the right side: 7.762087348

Break this problem into two subproblems by setting 
(x + -1.5) equal to 7.762087348 and -7.762087348.

Subproblem 1

x + -1.5 = 7.762087348 Simplifying x + -1.5 = 7.762087348 Reorder the terms: -1.5 + x = 7.762087348 Solving -1.5 + x = 7.762087348 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 7.762087348 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 7.762087348 + 1.5 x = 7.762087348 + 1.5 Combine like terms: 7.762087348 + 1.5 = 9.262087348 x = 9.262087348 Simplifying x = 9.262087348

Subproblem 2

x + -1.5 = -7.762087348 Simplifying x + -1.5 = -7.762087348 Reorder the terms: -1.5 + x = -7.762087348 Solving -1.5 + x = -7.762087348 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -7.762087348 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -7.762087348 + 1.5 x = -7.762087348 + 1.5 Combine like terms: -7.762087348 + 1.5 = -6.262087348 x = -6.262087348 Simplifying x = -6.262087348

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.262087348, -6.262087348}

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