2x^2+29x+92=0

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Solution for 2x^2+29x+92=0 equation:


Simplifying
2x2 + 29x + 92 = 0

Reorder the terms:
92 + 29x + 2x2 = 0

Solving
92 + 29x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
46 + 14.5x + x2 = 0

Move the constant term to the right:

Add '-46' to each side of the equation.
46 + 14.5x + -46 + x2 = 0 + -46

Reorder the terms:
46 + -46 + 14.5x + x2 = 0 + -46

Combine like terms: 46 + -46 = 0
0 + 14.5x + x2 = 0 + -46
14.5x + x2 = 0 + -46

Combine like terms: 0 + -46 = -46
14.5x + x2 = -46

The x term is 14.5x.  Take half its coefficient (7.25).
Square it (52.5625) and add it to both sides.

Add '52.5625' to each side of the equation.
14.5x + 52.5625 + x2 = -46 + 52.5625

Reorder the terms:
52.5625 + 14.5x + x2 = -46 + 52.5625

Combine like terms: -46 + 52.5625 = 6.5625
52.5625 + 14.5x + x2 = 6.5625

Factor a perfect square on the left side:
(x + 7.25)(x + 7.25) = 6.5625

Calculate the square root of the right side: 2.561737691

Break this problem into two subproblems by setting 
(x + 7.25) equal to 2.561737691 and -2.561737691.

Subproblem 1

x + 7.25 = 2.561737691 Simplifying x + 7.25 = 2.561737691 Reorder the terms: 7.25 + x = 2.561737691 Solving 7.25 + x = 2.561737691 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.25' to each side of the equation. 7.25 + -7.25 + x = 2.561737691 + -7.25 Combine like terms: 7.25 + -7.25 = 0.00 0.00 + x = 2.561737691 + -7.25 x = 2.561737691 + -7.25 Combine like terms: 2.561737691 + -7.25 = -4.688262309 x = -4.688262309 Simplifying x = -4.688262309

Subproblem 2

x + 7.25 = -2.561737691 Simplifying x + 7.25 = -2.561737691 Reorder the terms: 7.25 + x = -2.561737691 Solving 7.25 + x = -2.561737691 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.25' to each side of the equation. 7.25 + -7.25 + x = -2.561737691 + -7.25 Combine like terms: 7.25 + -7.25 = 0.00 0.00 + x = -2.561737691 + -7.25 x = -2.561737691 + -7.25 Combine like terms: -2.561737691 + -7.25 = -9.811737691 x = -9.811737691 Simplifying x = -9.811737691

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-4.688262309, -9.811737691}

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