p^2+8p=97

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Solution for p^2+8p=97 equation:


Simplifying
p2 + 8p = 97

Reorder the terms:
8p + p2 = 97

Solving
8p + p2 = 97

Solving for variable 'p'.

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

Combine like terms: 97 + -97 = 0
-97 + 8p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '97' to each side of the equation.
-97 + 8p + 97 + p2 = 0 + 97

Reorder the terms:
-97 + 97 + 8p + p2 = 0 + 97

Combine like terms: -97 + 97 = 0
0 + 8p + p2 = 0 + 97
8p + p2 = 0 + 97

Combine like terms: 0 + 97 = 97
8p + p2 = 97

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 = 97 + 16

Reorder the terms:
16 + 8p + p2 = 97 + 16

Combine like terms: 97 + 16 = 113
16 + 8p + p2 = 113

Factor a perfect square on the left side:
(p + 4)(p + 4) = 113

Calculate the square root of the right side: 10.630145813

Break this problem into two subproblems by setting 
(p + 4) equal to 10.630145813 and -10.630145813.

Subproblem 1

p + 4 = 10.630145813 Simplifying p + 4 = 10.630145813 Reorder the terms: 4 + p = 10.630145813 Solving 4 + p = 10.630145813 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 = 10.630145813 + -4 Combine like terms: 4 + -4 = 0 0 + p = 10.630145813 + -4 p = 10.630145813 + -4 Combine like terms: 10.630145813 + -4 = 6.630145813 p = 6.630145813 Simplifying p = 6.630145813

Subproblem 2

p + 4 = -10.630145813 Simplifying p + 4 = -10.630145813 Reorder the terms: 4 + p = -10.630145813 Solving 4 + p = -10.630145813 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 = -10.630145813 + -4 Combine like terms: 4 + -4 = 0 0 + p = -10.630145813 + -4 p = -10.630145813 + -4 Combine like terms: -10.630145813 + -4 = -14.630145813 p = -14.630145813 Simplifying p = -14.630145813

Solution

The solution to the problem is based on the solutions from the subproblems. p = {6.630145813, -14.630145813}

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