p^2-13p-97=-8

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Solution for p^2-13p-97=-8 equation:


Simplifying
p2 + -13p + -97 = -8

Reorder the terms:
-97 + -13p + p2 = -8

Solving
-97 + -13p + p2 = -8

Solving for variable 'p'.

Reorder the terms:
-97 + 8 + -13p + p2 = -8 + 8

Combine like terms: -97 + 8 = -89
-89 + -13p + p2 = -8 + 8

Combine like terms: -8 + 8 = 0
-89 + -13p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '89' to each side of the equation.
-89 + -13p + 89 + p2 = 0 + 89

Reorder the terms:
-89 + 89 + -13p + p2 = 0 + 89

Combine like terms: -89 + 89 = 0
0 + -13p + p2 = 0 + 89
-13p + p2 = 0 + 89

Combine like terms: 0 + 89 = 89
-13p + p2 = 89

The p term is -13p.  Take half its coefficient (-6.5).
Square it (42.25) and add it to both sides.

Add '42.25' to each side of the equation.
-13p + 42.25 + p2 = 89 + 42.25

Reorder the terms:
42.25 + -13p + p2 = 89 + 42.25

Combine like terms: 89 + 42.25 = 131.25
42.25 + -13p + p2 = 131.25

Factor a perfect square on the left side:
(p + -6.5)(p + -6.5) = 131.25

Calculate the square root of the right side: 11.456439237

Break this problem into two subproblems by setting 
(p + -6.5) equal to 11.456439237 and -11.456439237.

Subproblem 1

p + -6.5 = 11.456439237 Simplifying p + -6.5 = 11.456439237 Reorder the terms: -6.5 + p = 11.456439237 Solving -6.5 + p = 11.456439237 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + p = 11.456439237 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + p = 11.456439237 + 6.5 p = 11.456439237 + 6.5 Combine like terms: 11.456439237 + 6.5 = 17.956439237 p = 17.956439237 Simplifying p = 17.956439237

Subproblem 2

p + -6.5 = -11.456439237 Simplifying p + -6.5 = -11.456439237 Reorder the terms: -6.5 + p = -11.456439237 Solving -6.5 + p = -11.456439237 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + p = -11.456439237 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + p = -11.456439237 + 6.5 p = -11.456439237 + 6.5 Combine like terms: -11.456439237 + 6.5 = -4.956439237 p = -4.956439237 Simplifying p = -4.956439237

Solution

The solution to the problem is based on the solutions from the subproblems. p = {17.956439237, -4.956439237}

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