p^2-18p+54=0

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Solution for p^2-18p+54=0 equation:


Simplifying
p2 + -18p + 54 = 0

Reorder the terms:
54 + -18p + p2 = 0

Solving
54 + -18p + p2 = 0

Solving for variable 'p'.

Begin completing the square.

Move the constant term to the right:

Add '-54' to each side of the equation.
54 + -18p + -54 + p2 = 0 + -54

Reorder the terms:
54 + -54 + -18p + p2 = 0 + -54

Combine like terms: 54 + -54 = 0
0 + -18p + p2 = 0 + -54
-18p + p2 = 0 + -54

Combine like terms: 0 + -54 = -54
-18p + p2 = -54

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

Add '81' to each side of the equation.
-18p + 81 + p2 = -54 + 81

Reorder the terms:
81 + -18p + p2 = -54 + 81

Combine like terms: -54 + 81 = 27
81 + -18p + p2 = 27

Factor a perfect square on the left side:
(p + -9)(p + -9) = 27

Calculate the square root of the right side: 5.196152423

Break this problem into two subproblems by setting 
(p + -9) equal to 5.196152423 and -5.196152423.

Subproblem 1

p + -9 = 5.196152423 Simplifying p + -9 = 5.196152423 Reorder the terms: -9 + p = 5.196152423 Solving -9 + p = 5.196152423 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + p = 5.196152423 + 9 Combine like terms: -9 + 9 = 0 0 + p = 5.196152423 + 9 p = 5.196152423 + 9 Combine like terms: 5.196152423 + 9 = 14.196152423 p = 14.196152423 Simplifying p = 14.196152423

Subproblem 2

p + -9 = -5.196152423 Simplifying p + -9 = -5.196152423 Reorder the terms: -9 + p = -5.196152423 Solving -9 + p = -5.196152423 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + p = -5.196152423 + 9 Combine like terms: -9 + 9 = 0 0 + p = -5.196152423 + 9 p = -5.196152423 + 9 Combine like terms: -5.196152423 + 9 = 3.803847577 p = 3.803847577 Simplifying p = 3.803847577

Solution

The solution to the problem is based on the solutions from the subproblems. p = {14.196152423, 3.803847577}

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