x^2+14x-384=0

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Solution for x^2+14x-384=0 equation:


Simplifying
x2 + 14x + -384 = 0

Reorder the terms:
-384 + 14x + x2 = 0

Solving
-384 + 14x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '384' to each side of the equation.
-384 + 14x + 384 + x2 = 0 + 384

Reorder the terms:
-384 + 384 + 14x + x2 = 0 + 384

Combine like terms: -384 + 384 = 0
0 + 14x + x2 = 0 + 384
14x + x2 = 0 + 384

Combine like terms: 0 + 384 = 384
14x + x2 = 384

The x term is 14x.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14x + 49 + x2 = 384 + 49

Reorder the terms:
49 + 14x + x2 = 384 + 49

Combine like terms: 384 + 49 = 433
49 + 14x + x2 = 433

Factor a perfect square on the left side:
(x + 7)(x + 7) = 433

Calculate the square root of the right side: 20.808652047

Break this problem into two subproblems by setting 
(x + 7) equal to 20.808652047 and -20.808652047.

Subproblem 1

x + 7 = 20.808652047 Simplifying x + 7 = 20.808652047 Reorder the terms: 7 + x = 20.808652047 Solving 7 + x = 20.808652047 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 20.808652047 + -7 Combine like terms: 7 + -7 = 0 0 + x = 20.808652047 + -7 x = 20.808652047 + -7 Combine like terms: 20.808652047 + -7 = 13.808652047 x = 13.808652047 Simplifying x = 13.808652047

Subproblem 2

x + 7 = -20.808652047 Simplifying x + 7 = -20.808652047 Reorder the terms: 7 + x = -20.808652047 Solving 7 + x = -20.808652047 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = -20.808652047 + -7 Combine like terms: 7 + -7 = 0 0 + x = -20.808652047 + -7 x = -20.808652047 + -7 Combine like terms: -20.808652047 + -7 = -27.808652047 x = -27.808652047 Simplifying x = -27.808652047

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.808652047, -27.808652047}

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