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 = 25.630145813 x = 25.630145813 Simplifying x = 25.630145813

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 = 4.369854187 x = 4.369854187 Simplifying x = 4.369854187

Solution

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

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