0.5x^2-18x+27=0

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Solution for 0.5x^2-18x+27=0 equation:


Simplifying
0.5x2 + -18x + 27 = 0

Reorder the terms:
27 + -18x + 0.5x2 = 0

Solving
27 + -18x + 0.5x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.5'.
54 + -36x + x2 = 0

Move the constant term to the right:

Add '-54' to each side of the equation.
54 + -36x + -54 + x2 = 0 + -54

Reorder the terms:
54 + -54 + -36x + x2 = 0 + -54

Combine like terms: 54 + -54 = 0
0 + -36x + x2 = 0 + -54
-36x + x2 = 0 + -54

Combine like terms: 0 + -54 = -54
-36x + x2 = -54

The x term is -36x.  Take half its coefficient (-18).
Square it (324) and add it to both sides.

Add '324' to each side of the equation.
-36x + 324 + x2 = -54 + 324

Reorder the terms:
324 + -36x + x2 = -54 + 324

Combine like terms: -54 + 324 = 270
324 + -36x + x2 = 270

Factor a perfect square on the left side:
(x + -18)(x + -18) = 270

Calculate the square root of the right side: 16.431676725

Break this problem into two subproblems by setting 
(x + -18) equal to 16.431676725 and -16.431676725.

Subproblem 1

x + -18 = 16.431676725 Simplifying x + -18 = 16.431676725 Reorder the terms: -18 + x = 16.431676725 Solving -18 + x = 16.431676725 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + x = 16.431676725 + 18 Combine like terms: -18 + 18 = 0 0 + x = 16.431676725 + 18 x = 16.431676725 + 18 Combine like terms: 16.431676725 + 18 = 34.431676725 x = 34.431676725 Simplifying x = 34.431676725

Subproblem 2

x + -18 = -16.431676725 Simplifying x + -18 = -16.431676725 Reorder the terms: -18 + x = -16.431676725 Solving -18 + x = -16.431676725 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + x = -16.431676725 + 18 Combine like terms: -18 + 18 = 0 0 + x = -16.431676725 + 18 x = -16.431676725 + 18 Combine like terms: -16.431676725 + 18 = 1.568323275 x = 1.568323275 Simplifying x = 1.568323275

Solution

The solution to the problem is based on the solutions from the subproblems. x = {34.431676725, 1.568323275}

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