x^2+41x=12

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Solution for x^2+41x=12 equation:


Simplifying
x2 + 41x = 12

Reorder the terms:
41x + x2 = 12

Solving
41x + x2 = 12

Solving for variable 'x'.

Reorder the terms:
-12 + 41x + x2 = 12 + -12

Combine like terms: 12 + -12 = 0
-12 + 41x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + 41x + 12 + x2 = 0 + 12

Reorder the terms:
-12 + 12 + 41x + x2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 41x + x2 = 0 + 12
41x + x2 = 0 + 12

Combine like terms: 0 + 12 = 12
41x + x2 = 12

The x term is 41x.  Take half its coefficient (20.5).
Square it (420.25) and add it to both sides.

Add '420.25' to each side of the equation.
41x + 420.25 + x2 = 12 + 420.25

Reorder the terms:
420.25 + 41x + x2 = 12 + 420.25

Combine like terms: 12 + 420.25 = 432.25
420.25 + 41x + x2 = 432.25

Factor a perfect square on the left side:
(x + 20.5)(x + 20.5) = 432.25

Calculate the square root of the right side: 20.790622886

Break this problem into two subproblems by setting 
(x + 20.5) equal to 20.790622886 and -20.790622886.

Subproblem 1

x + 20.5 = 20.790622886 Simplifying x + 20.5 = 20.790622886 Reorder the terms: 20.5 + x = 20.790622886 Solving 20.5 + x = 20.790622886 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20.5' to each side of the equation. 20.5 + -20.5 + x = 20.790622886 + -20.5 Combine like terms: 20.5 + -20.5 = 0.0 0.0 + x = 20.790622886 + -20.5 x = 20.790622886 + -20.5 Combine like terms: 20.790622886 + -20.5 = 0.290622886 x = 0.290622886 Simplifying x = 0.290622886

Subproblem 2

x + 20.5 = -20.790622886 Simplifying x + 20.5 = -20.790622886 Reorder the terms: 20.5 + x = -20.790622886 Solving 20.5 + x = -20.790622886 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20.5' to each side of the equation. 20.5 + -20.5 + x = -20.790622886 + -20.5 Combine like terms: 20.5 + -20.5 = 0.0 0.0 + x = -20.790622886 + -20.5 x = -20.790622886 + -20.5 Combine like terms: -20.790622886 + -20.5 = -41.290622886 x = -41.290622886 Simplifying x = -41.290622886

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.290622886, -41.290622886}

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