p^2+7p-48=0

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Solution for p^2+7p-48=0 equation:


Simplifying
p2 + 7p + -48 = 0

Reorder the terms:
-48 + 7p + p2 = 0

Solving
-48 + 7p + p2 = 0

Solving for variable 'p'.

Begin completing the square.

Move the constant term to the right:

Add '48' to each side of the equation.
-48 + 7p + 48 + p2 = 0 + 48

Reorder the terms:
-48 + 48 + 7p + p2 = 0 + 48

Combine like terms: -48 + 48 = 0
0 + 7p + p2 = 0 + 48
7p + p2 = 0 + 48

Combine like terms: 0 + 48 = 48
7p + p2 = 48

The p term is 7p.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7p + 12.25 + p2 = 48 + 12.25

Reorder the terms:
12.25 + 7p + p2 = 48 + 12.25

Combine like terms: 48 + 12.25 = 60.25
12.25 + 7p + p2 = 60.25

Factor a perfect square on the left side:
(p + 3.5)(p + 3.5) = 60.25

Calculate the square root of the right side: 7.762087348

Break this problem into two subproblems by setting 
(p + 3.5) equal to 7.762087348 and -7.762087348.

Subproblem 1

p + 3.5 = 7.762087348 Simplifying p + 3.5 = 7.762087348 Reorder the terms: 3.5 + p = 7.762087348 Solving 3.5 + p = 7.762087348 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + p = 7.762087348 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + p = 7.762087348 + -3.5 p = 7.762087348 + -3.5 Combine like terms: 7.762087348 + -3.5 = 4.262087348 p = 4.262087348 Simplifying p = 4.262087348

Subproblem 2

p + 3.5 = -7.762087348 Simplifying p + 3.5 = -7.762087348 Reorder the terms: 3.5 + p = -7.762087348 Solving 3.5 + p = -7.762087348 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + p = -7.762087348 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + p = -7.762087348 + -3.5 p = -7.762087348 + -3.5 Combine like terms: -7.762087348 + -3.5 = -11.262087348 p = -11.262087348 Simplifying p = -11.262087348

Solution

The solution to the problem is based on the solutions from the subproblems. p = {4.262087348, -11.262087348}

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