6p^2-11p=40

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Solution for 6p^2-11p=40 equation:


Simplifying
6p2 + -11p = 40

Reorder the terms:
-11p + 6p2 = 40

Solving
-11p + 6p2 = 40

Solving for variable 'p'.

Reorder the terms:
-40 + -11p + 6p2 = 40 + -40

Combine like terms: 40 + -40 = 0
-40 + -11p + 6p2 = 0

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

Divide each side by '6'.
-6.666666667 + -1.833333333p + p2 = 0

Move the constant term to the right:

Add '6.666666667' to each side of the equation.
-6.666666667 + -1.833333333p + 6.666666667 + p2 = 0 + 6.666666667

Reorder the terms:
-6.666666667 + 6.666666667 + -1.833333333p + p2 = 0 + 6.666666667

Combine like terms: -6.666666667 + 6.666666667 = 0.000000000
0.000000000 + -1.833333333p + p2 = 0 + 6.666666667
-1.833333333p + p2 = 0 + 6.666666667

Combine like terms: 0 + 6.666666667 = 6.666666667
-1.833333333p + p2 = 6.666666667

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 = 6.666666667 + 0.8402777775

Reorder the terms:
0.8402777775 + -1.833333333p + p2 = 6.666666667 + 0.8402777775

Combine like terms: 6.666666667 + 0.8402777775 = 7.5069444445
0.8402777775 + -1.833333333p + p2 = 7.5069444445

Factor a perfect square on the left side:
(p + -0.9166666665)(p + -0.9166666665) = 7.5069444445

Calculate the square root of the right side: 2.73988037

Break this problem into two subproblems by setting 
(p + -0.9166666665) equal to 2.73988037 and -2.73988037.

Subproblem 1

p + -0.9166666665 = 2.73988037 Simplifying p + -0.9166666665 = 2.73988037 Reorder the terms: -0.9166666665 + p = 2.73988037 Solving -0.9166666665 + p = 2.73988037 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 = 2.73988037 + 0.9166666665 Combine like terms: -0.9166666665 + 0.9166666665 = 0.0000000000 0.0000000000 + p = 2.73988037 + 0.9166666665 p = 2.73988037 + 0.9166666665 Combine like terms: 2.73988037 + 0.9166666665 = 3.6565470365 p = 3.6565470365 Simplifying p = 3.6565470365

Subproblem 2

p + -0.9166666665 = -2.73988037 Simplifying p + -0.9166666665 = -2.73988037 Reorder the terms: -0.9166666665 + p = -2.73988037 Solving -0.9166666665 + p = -2.73988037 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 = -2.73988037 + 0.9166666665 Combine like terms: -0.9166666665 + 0.9166666665 = 0.0000000000 0.0000000000 + p = -2.73988037 + 0.9166666665 p = -2.73988037 + 0.9166666665 Combine like terms: -2.73988037 + 0.9166666665 = -1.8232137035 p = -1.8232137035 Simplifying p = -1.8232137035

Solution

The solution to the problem is based on the solutions from the subproblems. p = {3.6565470365, -1.8232137035}

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