8x^2+19x+3=

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Solution for 8x^2+19x+3= equation:


Simplifying
8x2 + 19x + 3 = 0

Reorder the terms:
3 + 19x + 8x2 = 0

Solving
3 + 19x + 8x2 = 0

Solving for variable 'x'.

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

Divide each side by '8'.
0.375 + 2.375x + x2 = 0

Move the constant term to the right:

Add '-0.375' to each side of the equation.
0.375 + 2.375x + -0.375 + x2 = 0 + -0.375

Reorder the terms:
0.375 + -0.375 + 2.375x + x2 = 0 + -0.375

Combine like terms: 0.375 + -0.375 = 0.000
0.000 + 2.375x + x2 = 0 + -0.375
2.375x + x2 = 0 + -0.375

Combine like terms: 0 + -0.375 = -0.375
2.375x + x2 = -0.375

The x term is 2.375x.  Take half its coefficient (1.1875).
Square it (1.41015625) and add it to both sides.

Add '1.41015625' to each side of the equation.
2.375x + 1.41015625 + x2 = -0.375 + 1.41015625

Reorder the terms:
1.41015625 + 2.375x + x2 = -0.375 + 1.41015625

Combine like terms: -0.375 + 1.41015625 = 1.03515625
1.41015625 + 2.375x + x2 = 1.03515625

Factor a perfect square on the left side:
(x + 1.1875)(x + 1.1875) = 1.03515625

Calculate the square root of the right side: 1.017426287

Break this problem into two subproblems by setting 
(x + 1.1875) equal to 1.017426287 and -1.017426287.

Subproblem 1

x + 1.1875 = 1.017426287 Simplifying x + 1.1875 = 1.017426287 Reorder the terms: 1.1875 + x = 1.017426287 Solving 1.1875 + x = 1.017426287 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1875' to each side of the equation. 1.1875 + -1.1875 + x = 1.017426287 + -1.1875 Combine like terms: 1.1875 + -1.1875 = 0.0000 0.0000 + x = 1.017426287 + -1.1875 x = 1.017426287 + -1.1875 Combine like terms: 1.017426287 + -1.1875 = -0.170073713 x = -0.170073713 Simplifying x = -0.170073713

Subproblem 2

x + 1.1875 = -1.017426287 Simplifying x + 1.1875 = -1.017426287 Reorder the terms: 1.1875 + x = -1.017426287 Solving 1.1875 + x = -1.017426287 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1875' to each side of the equation. 1.1875 + -1.1875 + x = -1.017426287 + -1.1875 Combine like terms: 1.1875 + -1.1875 = 0.0000 0.0000 + x = -1.017426287 + -1.1875 x = -1.017426287 + -1.1875 Combine like terms: -1.017426287 + -1.1875 = -2.204926287 x = -2.204926287 Simplifying x = -2.204926287

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.170073713, -2.204926287}

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