p^2-6p+9=99

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Solution for p^2-6p+9=99 equation:


Simplifying
p2 + -6p + 9 = 99

Reorder the terms:
9 + -6p + p2 = 99

Solving
9 + -6p + p2 = 99

Solving for variable 'p'.

Reorder the terms:
9 + -99 + -6p + p2 = 99 + -99

Combine like terms: 9 + -99 = -90
-90 + -6p + p2 = 99 + -99

Combine like terms: 99 + -99 = 0
-90 + -6p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '90' to each side of the equation.
-90 + -6p + 90 + p2 = 0 + 90

Reorder the terms:
-90 + 90 + -6p + p2 = 0 + 90

Combine like terms: -90 + 90 = 0
0 + -6p + p2 = 0 + 90
-6p + p2 = 0 + 90

Combine like terms: 0 + 90 = 90
-6p + p2 = 90

The p term is -6p.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6p + 9 + p2 = 90 + 9

Reorder the terms:
9 + -6p + p2 = 90 + 9

Combine like terms: 90 + 9 = 99
9 + -6p + p2 = 99

Factor a perfect square on the left side:
(p + -3)(p + -3) = 99

Calculate the square root of the right side: 9.949874371

Break this problem into two subproblems by setting 
(p + -3) equal to 9.949874371 and -9.949874371.

Subproblem 1

p + -3 = 9.949874371 Simplifying p + -3 = 9.949874371 Reorder the terms: -3 + p = 9.949874371 Solving -3 + p = 9.949874371 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + p = 9.949874371 + 3 Combine like terms: -3 + 3 = 0 0 + p = 9.949874371 + 3 p = 9.949874371 + 3 Combine like terms: 9.949874371 + 3 = 12.949874371 p = 12.949874371 Simplifying p = 12.949874371

Subproblem 2

p + -3 = -9.949874371 Simplifying p + -3 = -9.949874371 Reorder the terms: -3 + p = -9.949874371 Solving -3 + p = -9.949874371 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + p = -9.949874371 + 3 Combine like terms: -3 + 3 = 0 0 + p = -9.949874371 + 3 p = -9.949874371 + 3 Combine like terms: -9.949874371 + 3 = -6.949874371 p = -6.949874371 Simplifying p = -6.949874371

Solution

The solution to the problem is based on the solutions from the subproblems. p = {12.949874371, -6.949874371}

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