2p^2-27p+30=0

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Solution for 2p^2-27p+30=0 equation:


Simplifying
2p2 + -27p + 30 = 0

Reorder the terms:
30 + -27p + 2p2 = 0

Solving
30 + -27p + 2p2 = 0

Solving for variable 'p'.

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

Divide each side by '2'.
15 + -13.5p + p2 = 0

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + -13.5p + -15 + p2 = 0 + -15

Reorder the terms:
15 + -15 + -13.5p + p2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -13.5p + p2 = 0 + -15
-13.5p + p2 = 0 + -15

Combine like terms: 0 + -15 = -15
-13.5p + p2 = -15

The p term is -13.5p.  Take half its coefficient (-6.75).
Square it (45.5625) and add it to both sides.

Add '45.5625' to each side of the equation.
-13.5p + 45.5625 + p2 = -15 + 45.5625

Reorder the terms:
45.5625 + -13.5p + p2 = -15 + 45.5625

Combine like terms: -15 + 45.5625 = 30.5625
45.5625 + -13.5p + p2 = 30.5625

Factor a perfect square on the left side:
(p + -6.75)(p + -6.75) = 30.5625

Calculate the square root of the right side: 5.528336097

Break this problem into two subproblems by setting 
(p + -6.75) equal to 5.528336097 and -5.528336097.

Subproblem 1

p + -6.75 = 5.528336097 Simplifying p + -6.75 = 5.528336097 Reorder the terms: -6.75 + p = 5.528336097 Solving -6.75 + p = 5.528336097 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '6.75' to each side of the equation. -6.75 + 6.75 + p = 5.528336097 + 6.75 Combine like terms: -6.75 + 6.75 = 0.00 0.00 + p = 5.528336097 + 6.75 p = 5.528336097 + 6.75 Combine like terms: 5.528336097 + 6.75 = 12.278336097 p = 12.278336097 Simplifying p = 12.278336097

Subproblem 2

p + -6.75 = -5.528336097 Simplifying p + -6.75 = -5.528336097 Reorder the terms: -6.75 + p = -5.528336097 Solving -6.75 + p = -5.528336097 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '6.75' to each side of the equation. -6.75 + 6.75 + p = -5.528336097 + 6.75 Combine like terms: -6.75 + 6.75 = 0.00 0.00 + p = -5.528336097 + 6.75 p = -5.528336097 + 6.75 Combine like terms: -5.528336097 + 6.75 = 1.221663903 p = 1.221663903 Simplifying p = 1.221663903

Solution

The solution to the problem is based on the solutions from the subproblems. p = {12.278336097, 1.221663903}

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