5x^2-13x-32=0

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Solution for 5x^2-13x-32=0 equation:


Simplifying
5x2 + -13x + -32 = 0

Reorder the terms:
-32 + -13x + 5x2 = 0

Solving
-32 + -13x + 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'.
-6.4 + -2.6x + x2 = 0

Move the constant term to the right:

Add '6.4' to each side of the equation.
-6.4 + -2.6x + 6.4 + x2 = 0 + 6.4

Reorder the terms:
-6.4 + 6.4 + -2.6x + x2 = 0 + 6.4

Combine like terms: -6.4 + 6.4 = 0.0
0.0 + -2.6x + x2 = 0 + 6.4
-2.6x + x2 = 0 + 6.4

Combine like terms: 0 + 6.4 = 6.4
-2.6x + x2 = 6.4

The x term is -2.6x.  Take half its coefficient (-1.3).
Square it (1.69) and add it to both sides.

Add '1.69' to each side of the equation.
-2.6x + 1.69 + x2 = 6.4 + 1.69

Reorder the terms:
1.69 + -2.6x + x2 = 6.4 + 1.69

Combine like terms: 6.4 + 1.69 = 8.09
1.69 + -2.6x + x2 = 8.09

Factor a perfect square on the left side:
(x + -1.3)(x + -1.3) = 8.09

Calculate the square root of the right side: 2.844292531

Break this problem into two subproblems by setting 
(x + -1.3) equal to 2.844292531 and -2.844292531.

Subproblem 1

x + -1.3 = 2.844292531 Simplifying x + -1.3 = 2.844292531 Reorder the terms: -1.3 + x = 2.844292531 Solving -1.3 + x = 2.844292531 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.3' to each side of the equation. -1.3 + 1.3 + x = 2.844292531 + 1.3 Combine like terms: -1.3 + 1.3 = 0.0 0.0 + x = 2.844292531 + 1.3 x = 2.844292531 + 1.3 Combine like terms: 2.844292531 + 1.3 = 4.144292531 x = 4.144292531 Simplifying x = 4.144292531

Subproblem 2

x + -1.3 = -2.844292531 Simplifying x + -1.3 = -2.844292531 Reorder the terms: -1.3 + x = -2.844292531 Solving -1.3 + x = -2.844292531 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.3' to each side of the equation. -1.3 + 1.3 + x = -2.844292531 + 1.3 Combine like terms: -1.3 + 1.3 = 0.0 0.0 + x = -2.844292531 + 1.3 x = -2.844292531 + 1.3 Combine like terms: -2.844292531 + 1.3 = -1.544292531 x = -1.544292531 Simplifying x = -1.544292531

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.144292531, -1.544292531}

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