x^2+6x-49=0

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Solution for x^2+6x-49=0 equation:


Simplifying
x2 + 6x + -49 = 0

Reorder the terms:
-49 + 6x + x2 = 0

Solving
-49 + 6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '49' to each side of the equation.
-49 + 6x + 49 + x2 = 0 + 49

Reorder the terms:
-49 + 49 + 6x + x2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + 6x + x2 = 0 + 49
6x + x2 = 0 + 49

Combine like terms: 0 + 49 = 49
6x + x2 = 49

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 49 + 9

Reorder the terms:
9 + 6x + x2 = 49 + 9

Combine like terms: 49 + 9 = 58
9 + 6x + x2 = 58

Factor a perfect square on the left side:
(x + 3)(x + 3) = 58

Calculate the square root of the right side: 7.615773106

Break this problem into two subproblems by setting 
(x + 3) equal to 7.615773106 and -7.615773106.

Subproblem 1

x + 3 = 7.615773106 Simplifying x + 3 = 7.615773106 Reorder the terms: 3 + x = 7.615773106 Solving 3 + x = 7.615773106 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 7.615773106 + -3 Combine like terms: 3 + -3 = 0 0 + x = 7.615773106 + -3 x = 7.615773106 + -3 Combine like terms: 7.615773106 + -3 = 4.615773106 x = 4.615773106 Simplifying x = 4.615773106

Subproblem 2

x + 3 = -7.615773106 Simplifying x + 3 = -7.615773106 Reorder the terms: 3 + x = -7.615773106 Solving 3 + x = -7.615773106 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -7.615773106 + -3 Combine like terms: 3 + -3 = 0 0 + x = -7.615773106 + -3 x = -7.615773106 + -3 Combine like terms: -7.615773106 + -3 = -10.615773106 x = -10.615773106 Simplifying x = -10.615773106

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.615773106, -10.615773106}

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