3p^2-27p-60=0

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Solution for 3p^2-27p-60=0 equation: 


Simplifying
3p2 + -27p + -60 = 0

Reorder the terms:
-60 + -27p + 3p2 = 0

Solving
-60 + -27p + 3p2 = 0

Solving for variable 'p'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-20 + -9p + p2) = 0

Ignore the factor 3.

Subproblem 1
Set the factor '(-20 + -9p + p2)' equal to zero and attempt to solve:

Simplifying
-20 + -9p + p2 = 0

Solving
-20 + -9p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '20' to each side of the equation.
-20 + -9p + 20 + p2 = 0 + 20

Reorder the terms:
-20 + 20 + -9p + p2 = 0 + 20

Combine like terms: -20 + 20 = 0
0 + -9p + p2 = 0 + 20
-9p + p2 = 0 + 20

Combine like terms: 0 + 20 = 20
-9p + p2 = 20

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 = 20 + 20.25

Reorder the terms:
20.25 + -9p + p2 = 20 + 20.25

Combine like terms: 20 + 20.25 = 40.25
20.25 + -9p + p2 = 40.25

Factor a perfect square on the left side:
(p + -4.5)(p + -4.5) = 40.25

Calculate the square root of the right side: 6.34428877

Break this problem into two subproblems by setting 
(p + -4.5) equal to 6.34428877 and -6.34428877.


Subproblem 1
p + -4.5 = 6.34428877

Simplifying
p + -4.5 = 6.34428877

Reorder the terms:
-4.5 + p = 6.34428877

Solving
-4.5 + p = 6.34428877

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 = 6.34428877 + 4.5

Combine like terms: -4.5 + 4.5 = 0.0
0.0 + p = 6.34428877 + 4.5
p = 6.34428877 + 4.5

Combine like terms: 6.34428877 + 4.5 = 10.84428877
p = 10.84428877

Simplifying
p = 10.84428877


Subproblem 2
p + -4.5 = -6.34428877

Simplifying
p + -4.5 = -6.34428877

Reorder the terms:
-4.5 + p = -6.34428877

Solving
-4.5 + p = -6.34428877

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 = -6.34428877 + 4.5

Combine like terms: -4.5 + 4.5 = 0.0
0.0 + p = -6.34428877 + 4.5
p = -6.34428877 + 4.5

Combine like terms: -6.34428877 + 4.5 = -1.84428877
p = -1.84428877

Simplifying
p = -1.84428877


Solution
The solution to the problem is based on the solutions
from the subproblems.
p = {10.84428877, -1.84428877}
Solution
p = {10.84428877, -1.84428877}

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