5x^2-22x-58=0

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Solution for 5x^2-22x-58=0 equation:


Simplifying
5x2 + -22x + -58 = 0

Reorder the terms:
-58 + -22x + 5x2 = 0

Solving
-58 + -22x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-11.6 + -4.4x + x2 = 0

Move the constant term to the right:

Add '11.6' to each side of the equation.
-11.6 + -4.4x + 11.6 + x2 = 0 + 11.6

Reorder the terms:
-11.6 + 11.6 + -4.4x + x2 = 0 + 11.6

Combine like terms: -11.6 + 11.6 = 0.0
0.0 + -4.4x + x2 = 0 + 11.6
-4.4x + x2 = 0 + 11.6

Combine like terms: 0 + 11.6 = 11.6
-4.4x + x2 = 11.6

The x term is -4.4x.  Take half its coefficient (-2.2).
Square it (4.84) and add it to both sides.

Add '4.84' to each side of the equation.
-4.4x + 4.84 + x2 = 11.6 + 4.84

Reorder the terms:
4.84 + -4.4x + x2 = 11.6 + 4.84

Combine like terms: 11.6 + 4.84 = 16.44
4.84 + -4.4x + x2 = 16.44

Factor a perfect square on the left side:
(x + -2.2)(x + -2.2) = 16.44

Calculate the square root of the right side: 4.054626987

Break this problem into two subproblems by setting 
(x + -2.2) equal to 4.054626987 and -4.054626987.

Subproblem 1

x + -2.2 = 4.054626987 Simplifying x + -2.2 = 4.054626987 Reorder the terms: -2.2 + x = 4.054626987 Solving -2.2 + x = 4.054626987 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.2' to each side of the equation. -2.2 + 2.2 + x = 4.054626987 + 2.2 Combine like terms: -2.2 + 2.2 = 0.0 0.0 + x = 4.054626987 + 2.2 x = 4.054626987 + 2.2 Combine like terms: 4.054626987 + 2.2 = 6.254626987 x = 6.254626987 Simplifying x = 6.254626987

Subproblem 2

x + -2.2 = -4.054626987 Simplifying x + -2.2 = -4.054626987 Reorder the terms: -2.2 + x = -4.054626987 Solving -2.2 + x = -4.054626987 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.2' to each side of the equation. -2.2 + 2.2 + x = -4.054626987 + 2.2 Combine like terms: -2.2 + 2.2 = 0.0 0.0 + x = -4.054626987 + 2.2 x = -4.054626987 + 2.2 Combine like terms: -4.054626987 + 2.2 = -1.854626987 x = -1.854626987 Simplifying x = -1.854626987

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.254626987, -1.854626987}

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