x^2+17x+49=3

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Solution for x^2+17x+49=3 equation:


Simplifying
x2 + 17x + 49 = 3

Reorder the terms:
49 + 17x + x2 = 3

Solving
49 + 17x + x2 = 3

Solving for variable 'x'.

Reorder the terms:
49 + -3 + 17x + x2 = 3 + -3

Combine like terms: 49 + -3 = 46
46 + 17x + x2 = 3 + -3

Combine like terms: 3 + -3 = 0
46 + 17x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-46' to each side of the equation.
46 + 17x + -46 + x2 = 0 + -46

Reorder the terms:
46 + -46 + 17x + x2 = 0 + -46

Combine like terms: 46 + -46 = 0
0 + 17x + x2 = 0 + -46
17x + x2 = 0 + -46

Combine like terms: 0 + -46 = -46
17x + x2 = -46

The x term is 17x.  Take half its coefficient (8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
17x + 72.25 + x2 = -46 + 72.25

Reorder the terms:
72.25 + 17x + x2 = -46 + 72.25

Combine like terms: -46 + 72.25 = 26.25
72.25 + 17x + x2 = 26.25

Factor a perfect square on the left side:
(x + 8.5)(x + 8.5) = 26.25

Calculate the square root of the right side: 5.123475383

Break this problem into two subproblems by setting 
(x + 8.5) equal to 5.123475383 and -5.123475383.

Subproblem 1

x + 8.5 = 5.123475383 Simplifying x + 8.5 = 5.123475383 Reorder the terms: 8.5 + x = 5.123475383 Solving 8.5 + x = 5.123475383 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + x = 5.123475383 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + x = 5.123475383 + -8.5 x = 5.123475383 + -8.5 Combine like terms: 5.123475383 + -8.5 = -3.376524617 x = -3.376524617 Simplifying x = -3.376524617

Subproblem 2

x + 8.5 = -5.123475383 Simplifying x + 8.5 = -5.123475383 Reorder the terms: 8.5 + x = -5.123475383 Solving 8.5 + x = -5.123475383 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + x = -5.123475383 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + x = -5.123475383 + -8.5 x = -5.123475383 + -8.5 Combine like terms: -5.123475383 + -8.5 = -13.623475383 x = -13.623475383 Simplifying x = -13.623475383

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-3.376524617, -13.623475383}

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