9x^2-167x+612=0

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Solution for 9x^2-167x+612=0 equation:


Simplifying
9x2 + -167x + 612 = 0

Reorder the terms:
612 + -167x + 9x2 = 0

Solving
612 + -167x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
68 + -18.55555556x + x2 = 0

Move the constant term to the right:

Add '-68' to each side of the equation.
68 + -18.55555556x + -68 + x2 = 0 + -68

Reorder the terms:
68 + -68 + -18.55555556x + x2 = 0 + -68

Combine like terms: 68 + -68 = 0
0 + -18.55555556x + x2 = 0 + -68
-18.55555556x + x2 = 0 + -68

Combine like terms: 0 + -68 = -68
-18.55555556x + x2 = -68

The x term is -18.55555556x.  Take half its coefficient (-9.27777778).
Square it (86.07716054) and add it to both sides.

Add '86.07716054' to each side of the equation.
-18.55555556x + 86.07716054 + x2 = -68 + 86.07716054

Reorder the terms:
86.07716054 + -18.55555556x + x2 = -68 + 86.07716054

Combine like terms: -68 + 86.07716054 = 18.07716054
86.07716054 + -18.55555556x + x2 = 18.07716054

Factor a perfect square on the left side:
(x + -9.27777778)(x + -9.27777778) = 18.07716054

Calculate the square root of the right side: 4.25172442

Break this problem into two subproblems by setting 
(x + -9.27777778) equal to 4.25172442 and -4.25172442.

Subproblem 1

x + -9.27777778 = 4.25172442 Simplifying x + -9.27777778 = 4.25172442 Reorder the terms: -9.27777778 + x = 4.25172442 Solving -9.27777778 + x = 4.25172442 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.27777778' to each side of the equation. -9.27777778 + 9.27777778 + x = 4.25172442 + 9.27777778 Combine like terms: -9.27777778 + 9.27777778 = 0.00000000 0.00000000 + x = 4.25172442 + 9.27777778 x = 4.25172442 + 9.27777778 Combine like terms: 4.25172442 + 9.27777778 = 13.5295022 x = 13.5295022 Simplifying x = 13.5295022

Subproblem 2

x + -9.27777778 = -4.25172442 Simplifying x + -9.27777778 = -4.25172442 Reorder the terms: -9.27777778 + x = -4.25172442 Solving -9.27777778 + x = -4.25172442 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.27777778' to each side of the equation. -9.27777778 + 9.27777778 + x = -4.25172442 + 9.27777778 Combine like terms: -9.27777778 + 9.27777778 = 0.00000000 0.00000000 + x = -4.25172442 + 9.27777778 x = -4.25172442 + 9.27777778 Combine like terms: -4.25172442 + 9.27777778 = 5.02605336 x = 5.02605336 Simplifying x = 5.02605336

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.5295022, 5.02605336}

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