(x^2)+3.4x-26.01=0

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Solution for (x^2)+3.4x-26.01=0 equation:


Simplifying
(x2) + 3.4x + -26.01 = 0
x2 + 3.4x + -26.01 = 0

Reorder the terms:
-26.01 + 3.4x + x2 = 0

Solving
-26.01 + 3.4x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '26.01' to each side of the equation.
-26.01 + 3.4x + 26.01 + x2 = 0 + 26.01

Reorder the terms:
-26.01 + 26.01 + 3.4x + x2 = 0 + 26.01

Combine like terms: -26.01 + 26.01 = 0.00
0.00 + 3.4x + x2 = 0 + 26.01
3.4x + x2 = 0 + 26.01

Combine like terms: 0 + 26.01 = 26.01
3.4x + x2 = 26.01

The x term is 3.4x.  Take half its coefficient (1.7).
Square it (2.89) and add it to both sides.

Add '2.89' to each side of the equation.
3.4x + 2.89 + x2 = 26.01 + 2.89

Reorder the terms:
2.89 + 3.4x + x2 = 26.01 + 2.89

Combine like terms: 26.01 + 2.89 = 28.9
2.89 + 3.4x + x2 = 28.9

Factor a perfect square on the left side:
(x + 1.7)(x + 1.7) = 28.9

Calculate the square root of the right side: 5.375872022

Break this problem into two subproblems by setting 
(x + 1.7) equal to 5.375872022 and -5.375872022.

Subproblem 1

x + 1.7 = 5.375872022 Simplifying x + 1.7 = 5.375872022 Reorder the terms: 1.7 + x = 5.375872022 Solving 1.7 + x = 5.375872022 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.7' to each side of the equation. 1.7 + -1.7 + x = 5.375872022 + -1.7 Combine like terms: 1.7 + -1.7 = 0.0 0.0 + x = 5.375872022 + -1.7 x = 5.375872022 + -1.7 Combine like terms: 5.375872022 + -1.7 = 3.675872022 x = 3.675872022 Simplifying x = 3.675872022

Subproblem 2

x + 1.7 = -5.375872022 Simplifying x + 1.7 = -5.375872022 Reorder the terms: 1.7 + x = -5.375872022 Solving 1.7 + x = -5.375872022 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.7' to each side of the equation. 1.7 + -1.7 + x = -5.375872022 + -1.7 Combine like terms: 1.7 + -1.7 = 0.0 0.0 + x = -5.375872022 + -1.7 x = -5.375872022 + -1.7 Combine like terms: -5.375872022 + -1.7 = -7.075872022 x = -7.075872022 Simplifying x = -7.075872022

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.675872022, -7.075872022}

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