9x^2-248x+540=0

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Solution for 9x^2-248x+540=0 equation:


Simplifying
9x2 + -248x + 540 = 0

Reorder the terms:
540 + -248x + 9x2 = 0

Solving
540 + -248x + 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'.
60 + -27.55555556x + x2 = 0

Move the constant term to the right:

Add '-60' to each side of the equation.
60 + -27.55555556x + -60 + x2 = 0 + -60

Reorder the terms:
60 + -60 + -27.55555556x + x2 = 0 + -60

Combine like terms: 60 + -60 = 0
0 + -27.55555556x + x2 = 0 + -60
-27.55555556x + x2 = 0 + -60

Combine like terms: 0 + -60 = -60
-27.55555556x + x2 = -60

The x term is -27.55555556x.  Take half its coefficient (-13.77777778).
Square it (189.8271606) and add it to both sides.

Add '189.8271606' to each side of the equation.
-27.55555556x + 189.8271606 + x2 = -60 + 189.8271606

Reorder the terms:
189.8271606 + -27.55555556x + x2 = -60 + 189.8271606

Combine like terms: -60 + 189.8271606 = 129.8271606
189.8271606 + -27.55555556x + x2 = 129.8271606

Factor a perfect square on the left side:
(x + -13.77777778)(x + -13.77777778) = 129.8271606

Calculate the square root of the right side: 11.394172221

Break this problem into two subproblems by setting 
(x + -13.77777778) equal to 11.394172221 and -11.394172221.

Subproblem 1

x + -13.77777778 = 11.394172221 Simplifying x + -13.77777778 = 11.394172221 Reorder the terms: -13.77777778 + x = 11.394172221 Solving -13.77777778 + x = 11.394172221 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13.77777778' to each side of the equation. -13.77777778 + 13.77777778 + x = 11.394172221 + 13.77777778 Combine like terms: -13.77777778 + 13.77777778 = 0.00000000 0.00000000 + x = 11.394172221 + 13.77777778 x = 11.394172221 + 13.77777778 Combine like terms: 11.394172221 + 13.77777778 = 25.171950001 x = 25.171950001 Simplifying x = 25.171950001

Subproblem 2

x + -13.77777778 = -11.394172221 Simplifying x + -13.77777778 = -11.394172221 Reorder the terms: -13.77777778 + x = -11.394172221 Solving -13.77777778 + x = -11.394172221 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13.77777778' to each side of the equation. -13.77777778 + 13.77777778 + x = -11.394172221 + 13.77777778 Combine like terms: -13.77777778 + 13.77777778 = 0.00000000 0.00000000 + x = -11.394172221 + 13.77777778 x = -11.394172221 + 13.77777778 Combine like terms: -11.394172221 + 13.77777778 = 2.383605559 x = 2.383605559 Simplifying x = 2.383605559

Solution

The solution to the problem is based on the solutions from the subproblems. x = {25.171950001, 2.383605559}

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