3x^2-54x+160=0

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Solution for 3x^2-54x+160=0 equation:


Simplifying
3x2 + -54x + 160 = 0

Reorder the terms:
160 + -54x + 3x2 = 0

Solving
160 + -54x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
53.33333333 + -18x + x2 = 0

Move the constant term to the right:

Add '-53.33333333' to each side of the equation.
53.33333333 + -18x + -53.33333333 + x2 = 0 + -53.33333333

Reorder the terms:
53.33333333 + -53.33333333 + -18x + x2 = 0 + -53.33333333

Combine like terms: 53.33333333 + -53.33333333 = 0.00000000
0.00000000 + -18x + x2 = 0 + -53.33333333
-18x + x2 = 0 + -53.33333333

Combine like terms: 0 + -53.33333333 = -53.33333333
-18x + x2 = -53.33333333

The x term is -18x.  Take half its coefficient (-9).
Square it (81) and add it to both sides.

Add '81' to each side of the equation.
-18x + 81 + x2 = -53.33333333 + 81

Reorder the terms:
81 + -18x + x2 = -53.33333333 + 81

Combine like terms: -53.33333333 + 81 = 27.66666667
81 + -18x + x2 = 27.66666667

Factor a perfect square on the left side:
(x + -9)(x + -9) = 27.66666667

Calculate the square root of the right side: 5.25991128

Break this problem into two subproblems by setting 
(x + -9) equal to 5.25991128 and -5.25991128.

Subproblem 1

x + -9 = 5.25991128 Simplifying x + -9 = 5.25991128 Reorder the terms: -9 + x = 5.25991128 Solving -9 + x = 5.25991128 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + x = 5.25991128 + 9 Combine like terms: -9 + 9 = 0 0 + x = 5.25991128 + 9 x = 5.25991128 + 9 Combine like terms: 5.25991128 + 9 = 14.25991128 x = 14.25991128 Simplifying x = 14.25991128

Subproblem 2

x + -9 = -5.25991128 Simplifying x + -9 = -5.25991128 Reorder the terms: -9 + x = -5.25991128 Solving -9 + x = -5.25991128 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + x = -5.25991128 + 9 Combine like terms: -9 + 9 = 0 0 + x = -5.25991128 + 9 x = -5.25991128 + 9 Combine like terms: -5.25991128 + 9 = 3.74008872 x = 3.74008872 Simplifying x = 3.74008872

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.25991128, 3.74008872}

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