6p^2-11p-45=0

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Solution for 6p^2-11p-45=0 equation:


Simplifying
6p2 + -11p + -45 = 0

Reorder the terms:
-45 + -11p + 6p2 = 0

Solving
-45 + -11p + 6p2 = 0

Solving for variable 'p'.

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

Divide each side by '6'.
-7.5 + -1.833333333p + p2 = 0

Move the constant term to the right:

Add '7.5' to each side of the equation.
-7.5 + -1.833333333p + 7.5 + p2 = 0 + 7.5

Reorder the terms:
-7.5 + 7.5 + -1.833333333p + p2 = 0 + 7.5

Combine like terms: -7.5 + 7.5 = 0.0
0.0 + -1.833333333p + p2 = 0 + 7.5
-1.833333333p + p2 = 0 + 7.5

Combine like terms: 0 + 7.5 = 7.5
-1.833333333p + p2 = 7.5

The p term is -1.833333333p.  Take half its coefficient (-0.9166666665).
Square it (0.8402777775) and add it to both sides.

Add '0.8402777775' to each side of the equation.
-1.833333333p + 0.8402777775 + p2 = 7.5 + 0.8402777775

Reorder the terms:
0.8402777775 + -1.833333333p + p2 = 7.5 + 0.8402777775

Combine like terms: 7.5 + 0.8402777775 = 8.3402777775
0.8402777775 + -1.833333333p + p2 = 8.3402777775

Factor a perfect square on the left side:
(p + -0.9166666665)(p + -0.9166666665) = 8.3402777775

Calculate the square root of the right side: 2.887953908

Break this problem into two subproblems by setting 
(p + -0.9166666665) equal to 2.887953908 and -2.887953908.

Subproblem 1

p + -0.9166666665 = 2.887953908 Simplifying p + -0.9166666665 = 2.887953908 Reorder the terms: -0.9166666665 + p = 2.887953908 Solving -0.9166666665 + p = 2.887953908 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.9166666665' to each side of the equation. -0.9166666665 + 0.9166666665 + p = 2.887953908 + 0.9166666665 Combine like terms: -0.9166666665 + 0.9166666665 = 0.0000000000 0.0000000000 + p = 2.887953908 + 0.9166666665 p = 2.887953908 + 0.9166666665 Combine like terms: 2.887953908 + 0.9166666665 = 3.8046205745 p = 3.8046205745 Simplifying p = 3.8046205745

Subproblem 2

p + -0.9166666665 = -2.887953908 Simplifying p + -0.9166666665 = -2.887953908 Reorder the terms: -0.9166666665 + p = -2.887953908 Solving -0.9166666665 + p = -2.887953908 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.9166666665' to each side of the equation. -0.9166666665 + 0.9166666665 + p = -2.887953908 + 0.9166666665 Combine like terms: -0.9166666665 + 0.9166666665 = 0.0000000000 0.0000000000 + p = -2.887953908 + 0.9166666665 p = -2.887953908 + 0.9166666665 Combine like terms: -2.887953908 + 0.9166666665 = -1.9712872415 p = -1.9712872415 Simplifying p = -1.9712872415

Solution

The solution to the problem is based on the solutions from the subproblems. p = {3.8046205745, -1.9712872415}

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