4p^2-4p-11=0

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Solution for 4p^2-4p-11=0 equation:


Simplifying
4p2 + -4p + -11 = 0

Reorder the terms:
-11 + -4p + 4p2 = 0

Solving
-11 + -4p + 4p2 = 0

Solving for variable 'p'.

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

Divide each side by '4'.
-2.75 + -1p + p2 = 0

Move the constant term to the right:

Add '2.75' to each side of the equation.
-2.75 + -1p + 2.75 + p2 = 0 + 2.75

Reorder the terms:
-2.75 + 2.75 + -1p + p2 = 0 + 2.75

Combine like terms: -2.75 + 2.75 = 0.00
0.00 + -1p + p2 = 0 + 2.75
-1p + p2 = 0 + 2.75

Combine like terms: 0 + 2.75 = 2.75
-1p + p2 = 2.75

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 = 2.75 + 0.25

Reorder the terms:
0.25 + -1p + p2 = 2.75 + 0.25

Combine like terms: 2.75 + 0.25 = 3
0.25 + -1p + p2 = 3

Factor a perfect square on the left side:
(p + -0.5)(p + -0.5) = 3

Calculate the square root of the right side: 1.732050808

Break this problem into two subproblems by setting 
(p + -0.5) equal to 1.732050808 and -1.732050808.

Subproblem 1

p + -0.5 = 1.732050808 Simplifying p + -0.5 = 1.732050808 Reorder the terms: -0.5 + p = 1.732050808 Solving -0.5 + p = 1.732050808 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 = 1.732050808 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + p = 1.732050808 + 0.5 p = 1.732050808 + 0.5 Combine like terms: 1.732050808 + 0.5 = 2.232050808 p = 2.232050808 Simplifying p = 2.232050808

Subproblem 2

p + -0.5 = -1.732050808 Simplifying p + -0.5 = -1.732050808 Reorder the terms: -0.5 + p = -1.732050808 Solving -0.5 + p = -1.732050808 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 = -1.732050808 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + p = -1.732050808 + 0.5 p = -1.732050808 + 0.5 Combine like terms: -1.732050808 + 0.5 = -1.232050808 p = -1.232050808 Simplifying p = -1.232050808

Solution

The solution to the problem is based on the solutions from the subproblems. p = {2.232050808, -1.232050808}

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