10x^2+49x+26=0

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Solution for 10x^2+49x+26=0 equation:


Simplifying
10x2 + 49x + 26 = 0

Reorder the terms:
26 + 49x + 10x2 = 0

Solving
26 + 49x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
2.6 + 4.9x + x2 = 0

Move the constant term to the right:

Add '-2.6' to each side of the equation.
2.6 + 4.9x + -2.6 + x2 = 0 + -2.6

Reorder the terms:
2.6 + -2.6 + 4.9x + x2 = 0 + -2.6

Combine like terms: 2.6 + -2.6 = 0.0
0.0 + 4.9x + x2 = 0 + -2.6
4.9x + x2 = 0 + -2.6

Combine like terms: 0 + -2.6 = -2.6
4.9x + x2 = -2.6

The x term is 4.9x.  Take half its coefficient (2.45).
Square it (6.0025) and add it to both sides.

Add '6.0025' to each side of the equation.
4.9x + 6.0025 + x2 = -2.6 + 6.0025

Reorder the terms:
6.0025 + 4.9x + x2 = -2.6 + 6.0025

Combine like terms: -2.6 + 6.0025 = 3.4025
6.0025 + 4.9x + x2 = 3.4025

Factor a perfect square on the left side:
(x + 2.45)(x + 2.45) = 3.4025

Calculate the square root of the right side: 1.844586675

Break this problem into two subproblems by setting 
(x + 2.45) equal to 1.844586675 and -1.844586675.

Subproblem 1

x + 2.45 = 1.844586675 Simplifying x + 2.45 = 1.844586675 Reorder the terms: 2.45 + x = 1.844586675 Solving 2.45 + x = 1.844586675 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.45' to each side of the equation. 2.45 + -2.45 + x = 1.844586675 + -2.45 Combine like terms: 2.45 + -2.45 = 0.00 0.00 + x = 1.844586675 + -2.45 x = 1.844586675 + -2.45 Combine like terms: 1.844586675 + -2.45 = -0.605413325 x = -0.605413325 Simplifying x = -0.605413325

Subproblem 2

x + 2.45 = -1.844586675 Simplifying x + 2.45 = -1.844586675 Reorder the terms: 2.45 + x = -1.844586675 Solving 2.45 + x = -1.844586675 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.45' to each side of the equation. 2.45 + -2.45 + x = -1.844586675 + -2.45 Combine like terms: 2.45 + -2.45 = 0.00 0.00 + x = -1.844586675 + -2.45 x = -1.844586675 + -2.45 Combine like terms: -1.844586675 + -2.45 = -4.294586675 x = -4.294586675 Simplifying x = -4.294586675

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.605413325, -4.294586675}

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