114+8x+x^2+20x+x=0

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Solution for 114+8x+x^2+20x+x=0 equation:


Simplifying
114 + 8x + x2 + 20x + x = 0

Reorder the terms:
114 + 8x + 20x + x + x2 = 0

Combine like terms: 8x + 20x = 28x
114 + 28x + x + x2 = 0

Combine like terms: 28x + x = 29x
114 + 29x + x2 = 0

Solving
114 + 29x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-114' to each side of the equation.
114 + 29x + -114 + x2 = 0 + -114

Reorder the terms:
114 + -114 + 29x + x2 = 0 + -114

Combine like terms: 114 + -114 = 0
0 + 29x + x2 = 0 + -114
29x + x2 = 0 + -114

Combine like terms: 0 + -114 = -114
29x + x2 = -114

The x term is 29x.  Take half its coefficient (14.5).
Square it (210.25) and add it to both sides.

Add '210.25' to each side of the equation.
29x + 210.25 + x2 = -114 + 210.25

Reorder the terms:
210.25 + 29x + x2 = -114 + 210.25

Combine like terms: -114 + 210.25 = 96.25
210.25 + 29x + x2 = 96.25

Factor a perfect square on the left side:
(x + 14.5)(x + 14.5) = 96.25

Calculate the square root of the right side: 9.810708435

Break this problem into two subproblems by setting 
(x + 14.5) equal to 9.810708435 and -9.810708435.

Subproblem 1

x + 14.5 = 9.810708435 Simplifying x + 14.5 = 9.810708435 Reorder the terms: 14.5 + x = 9.810708435 Solving 14.5 + x = 9.810708435 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14.5' to each side of the equation. 14.5 + -14.5 + x = 9.810708435 + -14.5 Combine like terms: 14.5 + -14.5 = 0.0 0.0 + x = 9.810708435 + -14.5 x = 9.810708435 + -14.5 Combine like terms: 9.810708435 + -14.5 = -4.689291565 x = -4.689291565 Simplifying x = -4.689291565

Subproblem 2

x + 14.5 = -9.810708435 Simplifying x + 14.5 = -9.810708435 Reorder the terms: 14.5 + x = -9.810708435 Solving 14.5 + x = -9.810708435 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14.5' to each side of the equation. 14.5 + -14.5 + x = -9.810708435 + -14.5 Combine like terms: 14.5 + -14.5 = 0.0 0.0 + x = -9.810708435 + -14.5 x = -9.810708435 + -14.5 Combine like terms: -9.810708435 + -14.5 = -24.310708435 x = -24.310708435 Simplifying x = -24.310708435

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-4.689291565, -24.310708435}

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