16x^2+180x+147=0

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Solution for 16x^2+180x+147=0 equation:


Simplifying
16x2 + 180x + 147 = 0

Reorder the terms:
147 + 180x + 16x2 = 0

Solving
147 + 180x + 16x2 = 0

Solving for variable 'x'.

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

Divide each side by '16'.
9.1875 + 11.25x + x2 = 0

Move the constant term to the right:

Add '-9.1875' to each side of the equation.
9.1875 + 11.25x + -9.1875 + x2 = 0 + -9.1875

Reorder the terms:
9.1875 + -9.1875 + 11.25x + x2 = 0 + -9.1875

Combine like terms: 9.1875 + -9.1875 = 0.0000
0.0000 + 11.25x + x2 = 0 + -9.1875
11.25x + x2 = 0 + -9.1875

Combine like terms: 0 + -9.1875 = -9.1875
11.25x + x2 = -9.1875

The x term is 11.25x.  Take half its coefficient (5.625).
Square it (31.640625) and add it to both sides.

Add '31.640625' to each side of the equation.
11.25x + 31.640625 + x2 = -9.1875 + 31.640625

Reorder the terms:
31.640625 + 11.25x + x2 = -9.1875 + 31.640625

Combine like terms: -9.1875 + 31.640625 = 22.453125
31.640625 + 11.25x + x2 = 22.453125

Factor a perfect square on the left side:
(x + 5.625)(x + 5.625) = 22.453125

Calculate the square root of the right side: 4.738472855

Break this problem into two subproblems by setting 
(x + 5.625) equal to 4.738472855 and -4.738472855.

Subproblem 1

x + 5.625 = 4.738472855 Simplifying x + 5.625 = 4.738472855 Reorder the terms: 5.625 + x = 4.738472855 Solving 5.625 + x = 4.738472855 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.625' to each side of the equation. 5.625 + -5.625 + x = 4.738472855 + -5.625 Combine like terms: 5.625 + -5.625 = 0.000 0.000 + x = 4.738472855 + -5.625 x = 4.738472855 + -5.625 Combine like terms: 4.738472855 + -5.625 = -0.886527145 x = -0.886527145 Simplifying x = -0.886527145

Subproblem 2

x + 5.625 = -4.738472855 Simplifying x + 5.625 = -4.738472855 Reorder the terms: 5.625 + x = -4.738472855 Solving 5.625 + x = -4.738472855 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.625' to each side of the equation. 5.625 + -5.625 + x = -4.738472855 + -5.625 Combine like terms: 5.625 + -5.625 = 0.000 0.000 + x = -4.738472855 + -5.625 x = -4.738472855 + -5.625 Combine like terms: -4.738472855 + -5.625 = -10.363472855 x = -10.363472855 Simplifying x = -10.363472855

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.886527145, -10.363472855}

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