3p^2-28=27p

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Solution for 3p^2-28=27p equation:


Simplifying
3p2 + -28 = 27p

Reorder the terms:
-28 + 3p2 = 27p

Solving
-28 + 3p2 = 27p

Solving for variable 'p'.

Reorder the terms:
-28 + -27p + 3p2 = 27p + -27p

Combine like terms: 27p + -27p = 0
-28 + -27p + 3p2 = 0

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

Divide each side by '3'.
-9.333333333 + -9p + p2 = 0

Move the constant term to the right:

Add '9.333333333' to each side of the equation.
-9.333333333 + -9p + 9.333333333 + p2 = 0 + 9.333333333

Reorder the terms:
-9.333333333 + 9.333333333 + -9p + p2 = 0 + 9.333333333

Combine like terms: -9.333333333 + 9.333333333 = 0.000000000
0.000000000 + -9p + p2 = 0 + 9.333333333
-9p + p2 = 0 + 9.333333333

Combine like terms: 0 + 9.333333333 = 9.333333333
-9p + p2 = 9.333333333

The p term is -9p.  Take half its coefficient (-4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
-9p + 20.25 + p2 = 9.333333333 + 20.25

Reorder the terms:
20.25 + -9p + p2 = 9.333333333 + 20.25

Combine like terms: 9.333333333 + 20.25 = 29.583333333
20.25 + -9p + p2 = 29.583333333

Factor a perfect square on the left side:
(p + -4.5)(p + -4.5) = 29.583333333

Calculate the square root of the right side: 5.439056291

Break this problem into two subproblems by setting 
(p + -4.5) equal to 5.439056291 and -5.439056291.

Subproblem 1

p + -4.5 = 5.439056291 Simplifying p + -4.5 = 5.439056291 Reorder the terms: -4.5 + p = 5.439056291 Solving -4.5 + p = 5.439056291 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + p = 5.439056291 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + p = 5.439056291 + 4.5 p = 5.439056291 + 4.5 Combine like terms: 5.439056291 + 4.5 = 9.939056291 p = 9.939056291 Simplifying p = 9.939056291

Subproblem 2

p + -4.5 = -5.439056291 Simplifying p + -4.5 = -5.439056291 Reorder the terms: -4.5 + p = -5.439056291 Solving -4.5 + p = -5.439056291 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + p = -5.439056291 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + p = -5.439056291 + 4.5 p = -5.439056291 + 4.5 Combine like terms: -5.439056291 + 4.5 = -0.939056291 p = -0.939056291 Simplifying p = -0.939056291

Solution

The solution to the problem is based on the solutions from the subproblems. p = {9.939056291, -0.939056291}

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