x^2+16x-41=0

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Solution for x^2+16x-41=0 equation:


Simplifying
x2 + 16x + -41 = 0

Reorder the terms:
-41 + 16x + x2 = 0

Solving
-41 + 16x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '41' to each side of the equation.
-41 + 16x + 41 + x2 = 0 + 41

Reorder the terms:
-41 + 41 + 16x + x2 = 0 + 41

Combine like terms: -41 + 41 = 0
0 + 16x + x2 = 0 + 41
16x + x2 = 0 + 41

Combine like terms: 0 + 41 = 41
16x + x2 = 41

The x term is 16x.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16x + 64 + x2 = 41 + 64

Reorder the terms:
64 + 16x + x2 = 41 + 64

Combine like terms: 41 + 64 = 105
64 + 16x + x2 = 105

Factor a perfect square on the left side:
(x + 8)(x + 8) = 105

Calculate the square root of the right side: 10.246950766

Break this problem into two subproblems by setting 
(x + 8) equal to 10.246950766 and -10.246950766.

Subproblem 1

x + 8 = 10.246950766 Simplifying x + 8 = 10.246950766 Reorder the terms: 8 + x = 10.246950766 Solving 8 + x = 10.246950766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 10.246950766 + -8 Combine like terms: 8 + -8 = 0 0 + x = 10.246950766 + -8 x = 10.246950766 + -8 Combine like terms: 10.246950766 + -8 = 2.246950766 x = 2.246950766 Simplifying x = 2.246950766

Subproblem 2

x + 8 = -10.246950766 Simplifying x + 8 = -10.246950766 Reorder the terms: 8 + x = -10.246950766 Solving 8 + x = -10.246950766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -10.246950766 + -8 Combine like terms: 8 + -8 = 0 0 + x = -10.246950766 + -8 x = -10.246950766 + -8 Combine like terms: -10.246950766 + -8 = -18.246950766 x = -18.246950766 Simplifying x = -18.246950766

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.246950766, -18.246950766}

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