5p^2-5p-6=0

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Solution for 5p^2-5p-6=0 equation:


Simplifying
5p2 + -5p + -6 = 0

Reorder the terms:
-6 + -5p + 5p2 = 0

Solving
-6 + -5p + 5p2 = 0

Solving for variable 'p'.

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

Divide each side by '5'.
-1.2 + -1p + p2 = 0

Move the constant term to the right:

Add '1.2' to each side of the equation.
-1.2 + -1p + 1.2 + p2 = 0 + 1.2

Reorder the terms:
-1.2 + 1.2 + -1p + p2 = 0 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + -1p + p2 = 0 + 1.2
-1p + p2 = 0 + 1.2

Combine like terms: 0 + 1.2 = 1.2
-1p + p2 = 1.2

The p term is -1p.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1p + 0.25 + p2 = 1.2 + 0.25

Reorder the terms:
0.25 + -1p + p2 = 1.2 + 0.25

Combine like terms: 1.2 + 0.25 = 1.45
0.25 + -1p + p2 = 1.45

Factor a perfect square on the left side:
(p + -0.5)(p + -0.5) = 1.45

Calculate the square root of the right side: 1.204159458

Break this problem into two subproblems by setting 
(p + -0.5) equal to 1.204159458 and -1.204159458.

Subproblem 1

p + -0.5 = 1.204159458 Simplifying p + -0.5 = 1.204159458 Reorder the terms: -0.5 + p = 1.204159458 Solving -0.5 + p = 1.204159458 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + p = 1.204159458 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + p = 1.204159458 + 0.5 p = 1.204159458 + 0.5 Combine like terms: 1.204159458 + 0.5 = 1.704159458 p = 1.704159458 Simplifying p = 1.704159458

Subproblem 2

p + -0.5 = -1.204159458 Simplifying p + -0.5 = -1.204159458 Reorder the terms: -0.5 + p = -1.204159458 Solving -0.5 + p = -1.204159458 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + p = -1.204159458 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + p = -1.204159458 + 0.5 p = -1.204159458 + 0.5 Combine like terms: -1.204159458 + 0.5 = -0.704159458 p = -0.704159458 Simplifying p = -0.704159458

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.704159458, -0.704159458}

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