p^2-8p=-14

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Solution for p^2-8p=-14 equation:


Simplifying
p2 + -8p = -14

Reorder the terms:
-8p + p2 = -14

Solving
-8p + p2 = -14

Solving for variable 'p'.

Reorder the terms:
14 + -8p + p2 = -14 + 14

Combine like terms: -14 + 14 = 0
14 + -8p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + -8p + -14 + p2 = 0 + -14

Reorder the terms:
14 + -14 + -8p + p2 = 0 + -14

Combine like terms: 14 + -14 = 0
0 + -8p + p2 = 0 + -14
-8p + p2 = 0 + -14

Combine like terms: 0 + -14 = -14
-8p + p2 = -14

The p term is -8p.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8p + 16 + p2 = -14 + 16

Reorder the terms:
16 + -8p + p2 = -14 + 16

Combine like terms: -14 + 16 = 2
16 + -8p + p2 = 2

Factor a perfect square on the left side:
(p + -4)(p + -4) = 2

Calculate the square root of the right side: 1.414213562

Break this problem into two subproblems by setting 
(p + -4) equal to 1.414213562 and -1.414213562.

Subproblem 1

p + -4 = 1.414213562 Simplifying p + -4 = 1.414213562 Reorder the terms: -4 + p = 1.414213562 Solving -4 + p = 1.414213562 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + p = 1.414213562 + 4 Combine like terms: -4 + 4 = 0 0 + p = 1.414213562 + 4 p = 1.414213562 + 4 Combine like terms: 1.414213562 + 4 = 5.414213562 p = 5.414213562 Simplifying p = 5.414213562

Subproblem 2

p + -4 = -1.414213562 Simplifying p + -4 = -1.414213562 Reorder the terms: -4 + p = -1.414213562 Solving -4 + p = -1.414213562 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + p = -1.414213562 + 4 Combine like terms: -4 + 4 = 0 0 + p = -1.414213562 + 4 p = -1.414213562 + 4 Combine like terms: -1.414213562 + 4 = 2.585786438 p = 2.585786438 Simplifying p = 2.585786438

Solution

The solution to the problem is based on the solutions from the subproblems. p = {5.414213562, 2.585786438}

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