p^2-18p-116=10

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Solution for p^2-18p-116=10 equation:


Simplifying
p2 + -18p + -116 = 10

Reorder the terms:
-116 + -18p + p2 = 10

Solving
-116 + -18p + p2 = 10

Solving for variable 'p'.

Reorder the terms:
-116 + -10 + -18p + p2 = 10 + -10

Combine like terms: -116 + -10 = -126
-126 + -18p + p2 = 10 + -10

Combine like terms: 10 + -10 = 0
-126 + -18p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '126' to each side of the equation.
-126 + -18p + 126 + p2 = 0 + 126

Reorder the terms:
-126 + 126 + -18p + p2 = 0 + 126

Combine like terms: -126 + 126 = 0
0 + -18p + p2 = 0 + 126
-18p + p2 = 0 + 126

Combine like terms: 0 + 126 = 126
-18p + p2 = 126

The p term is -18p.  Take half its coefficient (-9).
Square it (81) and add it to both sides.

Add '81' to each side of the equation.
-18p + 81 + p2 = 126 + 81

Reorder the terms:
81 + -18p + p2 = 126 + 81

Combine like terms: 126 + 81 = 207
81 + -18p + p2 = 207

Factor a perfect square on the left side:
(p + -9)(p + -9) = 207

Calculate the square root of the right side: 14.38749457

Break this problem into two subproblems by setting 
(p + -9) equal to 14.38749457 and -14.38749457.

Subproblem 1

p + -9 = 14.38749457 Simplifying p + -9 = 14.38749457 Reorder the terms: -9 + p = 14.38749457 Solving -9 + p = 14.38749457 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + p = 14.38749457 + 9 Combine like terms: -9 + 9 = 0 0 + p = 14.38749457 + 9 p = 14.38749457 + 9 Combine like terms: 14.38749457 + 9 = 23.38749457 p = 23.38749457 Simplifying p = 23.38749457

Subproblem 2

p + -9 = -14.38749457 Simplifying p + -9 = -14.38749457 Reorder the terms: -9 + p = -14.38749457 Solving -9 + p = -14.38749457 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + p = -14.38749457 + 9 Combine like terms: -9 + 9 = 0 0 + p = -14.38749457 + 9 p = -14.38749457 + 9 Combine like terms: -14.38749457 + 9 = -5.38749457 p = -5.38749457 Simplifying p = -5.38749457

Solution

The solution to the problem is based on the solutions from the subproblems. p = {23.38749457, -5.38749457}

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