5x^2+5x+6=180

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Solution for 5x^2+5x+6=180 equation:


Simplifying
5x2 + 5x + 6 = 180

Reorder the terms:
6 + 5x + 5x2 = 180

Solving
6 + 5x + 5x2 = 180

Solving for variable 'x'.

Reorder the terms:
6 + -180 + 5x + 5x2 = 180 + -180

Combine like terms: 6 + -180 = -174
-174 + 5x + 5x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-174 + 5x + 5x2 = 0

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

Divide each side by '5'.
-34.8 + x + x2 = 0

Move the constant term to the right:

Add '34.8' to each side of the equation.
-34.8 + x + 34.8 + x2 = 0 + 34.8

Reorder the terms:
-34.8 + 34.8 + x + x2 = 0 + 34.8

Combine like terms: -34.8 + 34.8 = 0.0
0.0 + x + x2 = 0 + 34.8
x + x2 = 0 + 34.8

Combine like terms: 0 + 34.8 = 34.8
x + x2 = 34.8

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + x2 = 34.8 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 34.8 + 0.25

Combine like terms: 34.8 + 0.25 = 35.05
1.25 + x2 = 35.05

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 35.05

Calculate the square root of the right side: 5.920304046

Break this problem into two subproblems by setting 
(x + 0.5) equal to 5.920304046 and -5.920304046.

Subproblem 1

x + 0.5 = 5.920304046 Simplifying x + 0.5 = 5.920304046 Reorder the terms: 0.5 + x = 5.920304046 Solving 0.5 + x = 5.920304046 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 5.920304046 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 5.920304046 + -0.5 x = 5.920304046 + -0.5 Combine like terms: 5.920304046 + -0.5 = 5.420304046 x = 5.420304046 Simplifying x = 5.420304046

Subproblem 2

x + 0.5 = -5.920304046 Simplifying x + 0.5 = -5.920304046 Reorder the terms: 0.5 + x = -5.920304046 Solving 0.5 + x = -5.920304046 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -5.920304046 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -5.920304046 + -0.5 x = -5.920304046 + -0.5 Combine like terms: -5.920304046 + -0.5 = -6.420304046 x = -6.420304046 Simplifying x = -6.420304046

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.420304046, -6.420304046}

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