120=p^2+22p

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Solution for 120=p^2+22p equation:


Simplifying
120 = p2 + 22p

Reorder the terms:
120 = 22p + p2

Solving
120 = 22p + p2

Solving for variable 'p'.

Reorder the terms:
120 + -22p + -1p2 = 22p + -22p + p2 + -1p2

Combine like terms: 22p + -22p = 0
120 + -22p + -1p2 = 0 + p2 + -1p2
120 + -22p + -1p2 = p2 + -1p2

Combine like terms: p2 + -1p2 = 0
120 + -22p + -1p2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-120 + 22p + p2 = 0

Move the constant term to the right:

Add '120' to each side of the equation.
-120 + 22p + 120 + p2 = 0 + 120

Reorder the terms:
-120 + 120 + 22p + p2 = 0 + 120

Combine like terms: -120 + 120 = 0
0 + 22p + p2 = 0 + 120
22p + p2 = 0 + 120

Combine like terms: 0 + 120 = 120
22p + p2 = 120

The p term is 22p.  Take half its coefficient (11).
Square it (121) and add it to both sides.

Add '121' to each side of the equation.
22p + 121 + p2 = 120 + 121

Reorder the terms:
121 + 22p + p2 = 120 + 121

Combine like terms: 120 + 121 = 241
121 + 22p + p2 = 241

Factor a perfect square on the left side:
(p + 11)(p + 11) = 241

Calculate the square root of the right side: 15.524174696

Break this problem into two subproblems by setting 
(p + 11) equal to 15.524174696 and -15.524174696.

Subproblem 1

p + 11 = 15.524174696 Simplifying p + 11 = 15.524174696 Reorder the terms: 11 + p = 15.524174696 Solving 11 + p = 15.524174696 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + p = 15.524174696 + -11 Combine like terms: 11 + -11 = 0 0 + p = 15.524174696 + -11 p = 15.524174696 + -11 Combine like terms: 15.524174696 + -11 = 4.524174696 p = 4.524174696 Simplifying p = 4.524174696

Subproblem 2

p + 11 = -15.524174696 Simplifying p + 11 = -15.524174696 Reorder the terms: 11 + p = -15.524174696 Solving 11 + p = -15.524174696 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + p = -15.524174696 + -11 Combine like terms: 11 + -11 = 0 0 + p = -15.524174696 + -11 p = -15.524174696 + -11 Combine like terms: -15.524174696 + -11 = -26.524174696 p = -26.524174696 Simplifying p = -26.524174696

Solution

The solution to the problem is based on the solutions from the subproblems. p = {4.524174696, -26.524174696}

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