x^2+30x+112=0

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Solution for x^2+30x+112=0 equation:


Simplifying
x2 + 30x + 112 = 0

Reorder the terms:
112 + 30x + x2 = 0

Solving
112 + 30x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-112' to each side of the equation.
112 + 30x + -112 + x2 = 0 + -112

Reorder the terms:
112 + -112 + 30x + x2 = 0 + -112

Combine like terms: 112 + -112 = 0
0 + 30x + x2 = 0 + -112
30x + x2 = 0 + -112

Combine like terms: 0 + -112 = -112
30x + x2 = -112

The x term is 30x.  Take half its coefficient (15).
Square it (225) and add it to both sides.

Add '225' to each side of the equation.
30x + 225 + x2 = -112 + 225

Reorder the terms:
225 + 30x + x2 = -112 + 225

Combine like terms: -112 + 225 = 113
225 + 30x + x2 = 113

Factor a perfect square on the left side:
(x + 15)(x + 15) = 113

Calculate the square root of the right side: 10.630145813

Break this problem into two subproblems by setting 
(x + 15) equal to 10.630145813 and -10.630145813.

Subproblem 1

x + 15 = 10.630145813 Simplifying x + 15 = 10.630145813 Reorder the terms: 15 + x = 10.630145813 Solving 15 + x = 10.630145813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = 10.630145813 + -15 Combine like terms: 15 + -15 = 0 0 + x = 10.630145813 + -15 x = 10.630145813 + -15 Combine like terms: 10.630145813 + -15 = -4.369854187 x = -4.369854187 Simplifying x = -4.369854187

Subproblem 2

x + 15 = -10.630145813 Simplifying x + 15 = -10.630145813 Reorder the terms: 15 + x = -10.630145813 Solving 15 + x = -10.630145813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = -10.630145813 + -15 Combine like terms: 15 + -15 = 0 0 + x = -10.630145813 + -15 x = -10.630145813 + -15 Combine like terms: -10.630145813 + -15 = -25.630145813 x = -25.630145813 Simplifying x = -25.630145813

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-4.369854187, -25.630145813}

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