x^2+19x+75=0

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Solution for x^2+19x+75=0 equation:


Simplifying
x2 + 19x + 75 = 0

Reorder the terms:
75 + 19x + x2 = 0

Solving
75 + 19x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-75' to each side of the equation.
75 + 19x + -75 + x2 = 0 + -75

Reorder the terms:
75 + -75 + 19x + x2 = 0 + -75

Combine like terms: 75 + -75 = 0
0 + 19x + x2 = 0 + -75
19x + x2 = 0 + -75

Combine like terms: 0 + -75 = -75
19x + x2 = -75

The x term is 19x.  Take half its coefficient (9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
19x + 90.25 + x2 = -75 + 90.25

Reorder the terms:
90.25 + 19x + x2 = -75 + 90.25

Combine like terms: -75 + 90.25 = 15.25
90.25 + 19x + x2 = 15.25

Factor a perfect square on the left side:
(x + 9.5)(x + 9.5) = 15.25

Calculate the square root of the right side: 3.905124838

Break this problem into two subproblems by setting 
(x + 9.5) equal to 3.905124838 and -3.905124838.

Subproblem 1

x + 9.5 = 3.905124838 Simplifying x + 9.5 = 3.905124838 Reorder the terms: 9.5 + x = 3.905124838 Solving 9.5 + x = 3.905124838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + x = 3.905124838 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + x = 3.905124838 + -9.5 x = 3.905124838 + -9.5 Combine like terms: 3.905124838 + -9.5 = -5.594875162 x = -5.594875162 Simplifying x = -5.594875162

Subproblem 2

x + 9.5 = -3.905124838 Simplifying x + 9.5 = -3.905124838 Reorder the terms: 9.5 + x = -3.905124838 Solving 9.5 + x = -3.905124838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + x = -3.905124838 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + x = -3.905124838 + -9.5 x = -3.905124838 + -9.5 Combine like terms: -3.905124838 + -9.5 = -13.405124838 x = -13.405124838 Simplifying x = -13.405124838

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-5.594875162, -13.405124838}

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