x^2+14x-374=0

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Solution for x^2+14x-374=0 equation:


Simplifying
x2 + 14x + -374 = 0

Reorder the terms:
-374 + 14x + x2 = 0

Solving
-374 + 14x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '374' to each side of the equation.
-374 + 14x + 374 + x2 = 0 + 374

Reorder the terms:
-374 + 374 + 14x + x2 = 0 + 374

Combine like terms: -374 + 374 = 0
0 + 14x + x2 = 0 + 374
14x + x2 = 0 + 374

Combine like terms: 0 + 374 = 374
14x + x2 = 374

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 = 374 + 49

Reorder the terms:
49 + 14x + x2 = 374 + 49

Combine like terms: 374 + 49 = 423
49 + 14x + x2 = 423

Factor a perfect square on the left side:
(x + 7)(x + 7) = 423

Calculate the square root of the right side: 20.566963801

Break this problem into two subproblems by setting 
(x + 7) equal to 20.566963801 and -20.566963801.

Subproblem 1

x + 7 = 20.566963801 Simplifying x + 7 = 20.566963801 Reorder the terms: 7 + x = 20.566963801 Solving 7 + x = 20.566963801 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 = 20.566963801 + -7 Combine like terms: 7 + -7 = 0 0 + x = 20.566963801 + -7 x = 20.566963801 + -7 Combine like terms: 20.566963801 + -7 = 13.566963801 x = 13.566963801 Simplifying x = 13.566963801

Subproblem 2

x + 7 = -20.566963801 Simplifying x + 7 = -20.566963801 Reorder the terms: 7 + x = -20.566963801 Solving 7 + x = -20.566963801 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 = -20.566963801 + -7 Combine like terms: 7 + -7 = 0 0 + x = -20.566963801 + -7 x = -20.566963801 + -7 Combine like terms: -20.566963801 + -7 = -27.566963801 x = -27.566963801 Simplifying x = -27.566963801

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.566963801, -27.566963801}

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