5x^2+37x-8=0

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Solution for 5x^2+37x-8=0 equation:


Simplifying
5x2 + 37x + -8 = 0

Reorder the terms:
-8 + 37x + 5x2 = 0

Solving
-8 + 37x + 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'.
-1.6 + 7.4x + x2 = 0

Move the constant term to the right:

Add '1.6' to each side of the equation.
-1.6 + 7.4x + 1.6 + x2 = 0 + 1.6

Reorder the terms:
-1.6 + 1.6 + 7.4x + x2 = 0 + 1.6

Combine like terms: -1.6 + 1.6 = 0.0
0.0 + 7.4x + x2 = 0 + 1.6
7.4x + x2 = 0 + 1.6

Combine like terms: 0 + 1.6 = 1.6
7.4x + x2 = 1.6

The x term is 7.4x.  Take half its coefficient (3.7).
Square it (13.69) and add it to both sides.

Add '13.69' to each side of the equation.
7.4x + 13.69 + x2 = 1.6 + 13.69

Reorder the terms:
13.69 + 7.4x + x2 = 1.6 + 13.69

Combine like terms: 1.6 + 13.69 = 15.29
13.69 + 7.4x + x2 = 15.29

Factor a perfect square on the left side:
(x + 3.7)(x + 3.7) = 15.29

Calculate the square root of the right side: 3.910242959

Break this problem into two subproblems by setting 
(x + 3.7) equal to 3.910242959 and -3.910242959.

Subproblem 1

x + 3.7 = 3.910242959 Simplifying x + 3.7 = 3.910242959 Reorder the terms: 3.7 + x = 3.910242959 Solving 3.7 + x = 3.910242959 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.7' to each side of the equation. 3.7 + -3.7 + x = 3.910242959 + -3.7 Combine like terms: 3.7 + -3.7 = 0.0 0.0 + x = 3.910242959 + -3.7 x = 3.910242959 + -3.7 Combine like terms: 3.910242959 + -3.7 = 0.210242959 x = 0.210242959 Simplifying x = 0.210242959

Subproblem 2

x + 3.7 = -3.910242959 Simplifying x + 3.7 = -3.910242959 Reorder the terms: 3.7 + x = -3.910242959 Solving 3.7 + x = -3.910242959 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.7' to each side of the equation. 3.7 + -3.7 + x = -3.910242959 + -3.7 Combine like terms: 3.7 + -3.7 = 0.0 0.0 + x = -3.910242959 + -3.7 x = -3.910242959 + -3.7 Combine like terms: -3.910242959 + -3.7 = -7.610242959 x = -7.610242959 Simplifying x = -7.610242959

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.210242959, -7.610242959}

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