x^2+14x+49=5

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Solution for x^2+14x+49=5 equation:


Simplifying
x2 + 14x + 49 = 5

Reorder the terms:
49 + 14x + x2 = 5

Solving
49 + 14x + x2 = 5

Solving for variable 'x'.

Reorder the terms:
49 + -5 + 14x + x2 = 5 + -5

Combine like terms: 49 + -5 = 44
44 + 14x + x2 = 5 + -5

Combine like terms: 5 + -5 = 0
44 + 14x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-44' to each side of the equation.
44 + 14x + -44 + x2 = 0 + -44

Reorder the terms:
44 + -44 + 14x + x2 = 0 + -44

Combine like terms: 44 + -44 = 0
0 + 14x + x2 = 0 + -44
14x + x2 = 0 + -44

Combine like terms: 0 + -44 = -44
14x + x2 = -44

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 = -44 + 49

Reorder the terms:
49 + 14x + x2 = -44 + 49

Combine like terms: -44 + 49 = 5
49 + 14x + x2 = 5

Factor a perfect square on the left side:
(x + 7)(x + 7) = 5

Calculate the square root of the right side: 2.236067978

Break this problem into two subproblems by setting 
(x + 7) equal to 2.236067978 and -2.236067978.

Subproblem 1

x + 7 = 2.236067978 Simplifying x + 7 = 2.236067978 Reorder the terms: 7 + x = 2.236067978 Solving 7 + x = 2.236067978 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 = 2.236067978 + -7 Combine like terms: 7 + -7 = 0 0 + x = 2.236067978 + -7 x = 2.236067978 + -7 Combine like terms: 2.236067978 + -7 = -4.763932022 x = -4.763932022 Simplifying x = -4.763932022

Subproblem 2

x + 7 = -2.236067978 Simplifying x + 7 = -2.236067978 Reorder the terms: 7 + x = -2.236067978 Solving 7 + x = -2.236067978 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 = -2.236067978 + -7 Combine like terms: 7 + -7 = 0 0 + x = -2.236067978 + -7 x = -2.236067978 + -7 Combine like terms: -2.236067978 + -7 = -9.236067978 x = -9.236067978 Simplifying x = -9.236067978

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-4.763932022, -9.236067978}

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