p^2+6p=-4

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Solution for p^2+6p=-4 equation:


Simplifying
p2 + 6p = -4

Reorder the terms:
6p + p2 = -4

Solving
6p + p2 = -4

Solving for variable 'p'.

Reorder the terms:
4 + 6p + p2 = -4 + 4

Combine like terms: -4 + 4 = 0
4 + 6p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + 6p + -4 + p2 = 0 + -4

Reorder the terms:
4 + -4 + 6p + p2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 6p + p2 = 0 + -4
6p + p2 = 0 + -4

Combine like terms: 0 + -4 = -4
6p + p2 = -4

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 = -4 + 9

Reorder the terms:
9 + 6p + p2 = -4 + 9

Combine like terms: -4 + 9 = 5
9 + 6p + p2 = 5

Factor a perfect square on the left side:
(p + 3)(p + 3) = 5

Calculate the square root of the right side: 2.236067978

Break this problem into two subproblems by setting 
(p + 3) equal to 2.236067978 and -2.236067978.

Subproblem 1

p + 3 = 2.236067978 Simplifying p + 3 = 2.236067978 Reorder the terms: 3 + p = 2.236067978 Solving 3 + p = 2.236067978 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 = 2.236067978 + -3 Combine like terms: 3 + -3 = 0 0 + p = 2.236067978 + -3 p = 2.236067978 + -3 Combine like terms: 2.236067978 + -3 = -0.763932022 p = -0.763932022 Simplifying p = -0.763932022

Subproblem 2

p + 3 = -2.236067978 Simplifying p + 3 = -2.236067978 Reorder the terms: 3 + p = -2.236067978 Solving 3 + p = -2.236067978 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 = -2.236067978 + -3 Combine like terms: 3 + -3 = 0 0 + p = -2.236067978 + -3 p = -2.236067978 + -3 Combine like terms: -2.236067978 + -3 = -5.236067978 p = -5.236067978 Simplifying p = -5.236067978

Solution

The solution to the problem is based on the solutions from the subproblems. p = {-0.763932022, -5.236067978}

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