5x^2+19x-41=0

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Solution for 5x^2+19x-41=0 equation:


Simplifying
5x2 + 19x + -41 = 0

Reorder the terms:
-41 + 19x + 5x2 = 0

Solving
-41 + 19x + 5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
5 the coefficient of the squared term: 

Divide each side by '5'.
-8.2 + 3.8x + x2 = 0

Move the constant term to the right:

Add '8.2' to each side of the equation.
-8.2 + 3.8x + 8.2 + x2 = 0 + 8.2

Reorder the terms:
-8.2 + 8.2 + 3.8x + x2 = 0 + 8.2

Combine like terms: -8.2 + 8.2 = 0.0
0.0 + 3.8x + x2 = 0 + 8.2
3.8x + x2 = 0 + 8.2

Combine like terms: 0 + 8.2 = 8.2
3.8x + x2 = 8.2

The x term is 3.8x.  Take half its coefficient (1.9).
Square it (3.61) and add it to both sides.

Add '3.61' to each side of the equation.
3.8x + 3.61 + x2 = 8.2 + 3.61

Reorder the terms:
3.61 + 3.8x + x2 = 8.2 + 3.61

Combine like terms: 8.2 + 3.61 = 11.81
3.61 + 3.8x + x2 = 11.81

Factor a perfect square on the left side:
(x + 1.9)(x + 1.9) = 11.81

Calculate the square root of the right side: 3.436568055

Break this problem into two subproblems by setting 
(x + 1.9) equal to 3.436568055 and -3.436568055.

Subproblem 1

x + 1.9 = 3.436568055 Simplifying x + 1.9 = 3.436568055 Reorder the terms: 1.9 + x = 3.436568055 Solving 1.9 + x = 3.436568055 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.9' to each side of the equation. 1.9 + -1.9 + x = 3.436568055 + -1.9 Combine like terms: 1.9 + -1.9 = 0.0 0.0 + x = 3.436568055 + -1.9 x = 3.436568055 + -1.9 Combine like terms: 3.436568055 + -1.9 = 1.536568055 x = 1.536568055 Simplifying x = 1.536568055

Subproblem 2

x + 1.9 = -3.436568055 Simplifying x + 1.9 = -3.436568055 Reorder the terms: 1.9 + x = -3.436568055 Solving 1.9 + x = -3.436568055 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.9' to each side of the equation. 1.9 + -1.9 + x = -3.436568055 + -1.9 Combine like terms: 1.9 + -1.9 = 0.0 0.0 + x = -3.436568055 + -1.9 x = -3.436568055 + -1.9 Combine like terms: -3.436568055 + -1.9 = -5.336568055 x = -5.336568055 Simplifying x = -5.336568055

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.536568055, -5.336568055}

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