x^2+27x+174.96=0

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Solution for x^2+27x+174.96=0 equation:


Simplifying
x2 + 27x + 174.96 = 0

Reorder the terms:
174.96 + 27x + x2 = 0

Solving
174.96 + 27x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-174.96' to each side of the equation.
174.96 + 27x + -174.96 + x2 = 0 + -174.96

Reorder the terms:
174.96 + -174.96 + 27x + x2 = 0 + -174.96

Combine like terms: 174.96 + -174.96 = 0.00
0.00 + 27x + x2 = 0 + -174.96
27x + x2 = 0 + -174.96

Combine like terms: 0 + -174.96 = -174.96
27x + x2 = -174.96

The x term is 27x.  Take half its coefficient (13.5).
Square it (182.25) and add it to both sides.

Add '182.25' to each side of the equation.
27x + 182.25 + x2 = -174.96 + 182.25

Reorder the terms:
182.25 + 27x + x2 = -174.96 + 182.25

Combine like terms: -174.96 + 182.25 = 7.29
182.25 + 27x + x2 = 7.29

Factor a perfect square on the left side:
(x + 13.5)(x + 13.5) = 7.29

Calculate the square root of the right side: 2.7

Break this problem into two subproblems by setting 
(x + 13.5) equal to 2.7 and -2.7.

Subproblem 1

x + 13.5 = 2.7 Simplifying x + 13.5 = 2.7 Reorder the terms: 13.5 + x = 2.7 Solving 13.5 + x = 2.7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13.5' to each side of the equation. 13.5 + -13.5 + x = 2.7 + -13.5 Combine like terms: 13.5 + -13.5 = 0.0 0.0 + x = 2.7 + -13.5 x = 2.7 + -13.5 Combine like terms: 2.7 + -13.5 = -10.8 x = -10.8 Simplifying x = -10.8

Subproblem 2

x + 13.5 = -2.7 Simplifying x + 13.5 = -2.7 Reorder the terms: 13.5 + x = -2.7 Solving 13.5 + x = -2.7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13.5' to each side of the equation. 13.5 + -13.5 + x = -2.7 + -13.5 Combine like terms: 13.5 + -13.5 = 0.0 0.0 + x = -2.7 + -13.5 x = -2.7 + -13.5 Combine like terms: -2.7 + -13.5 = -16.2 x = -16.2 Simplifying x = -16.2

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-10.8, -16.2}

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