2-P^2=6P-1

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Solution for 2-P^2=6P-1 equation:


Simplifying
2 + -1P2 = 6P + -1

Reorder the terms:
2 + -1P2 = -1 + 6P

Solving
2 + -1P2 = -1 + 6P

Solving for variable 'P'.

Reorder the terms:
2 + 1 + -6P + -1P2 = -1 + 6P + 1 + -6P

Combine like terms: 2 + 1 = 3
3 + -6P + -1P2 = -1 + 6P + 1 + -6P

Reorder the terms:
3 + -6P + -1P2 = -1 + 1 + 6P + -6P

Combine like terms: -1 + 1 = 0
3 + -6P + -1P2 = 0 + 6P + -6P
3 + -6P + -1P2 = 6P + -6P

Combine like terms: 6P + -6P = 0
3 + -6P + -1P2 = 0

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

Divide each side by '-1'.
-3 + 6P + P2 = 0

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 6P + 3 + P2 = 0 + 3

Reorder the terms:
-3 + 3 + 6P + P2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 6P + P2 = 0 + 3
6P + P2 = 0 + 3

Combine like terms: 0 + 3 = 3
6P + P2 = 3

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 = 3 + 9

Reorder the terms:
9 + 6P + P2 = 3 + 9

Combine like terms: 3 + 9 = 12
9 + 6P + P2 = 12

Factor a perfect square on the left side:
(P + 3)(P + 3) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(P + 3) equal to 3.464101615 and -3.464101615.

Subproblem 1

P + 3 = 3.464101615 Simplifying P + 3 = 3.464101615 Reorder the terms: 3 + P = 3.464101615 Solving 3 + P = 3.464101615 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 = 3.464101615 + -3 Combine like terms: 3 + -3 = 0 0 + P = 3.464101615 + -3 P = 3.464101615 + -3 Combine like terms: 3.464101615 + -3 = 0.464101615 P = 0.464101615 Simplifying P = 0.464101615

Subproblem 2

P + 3 = -3.464101615 Simplifying P + 3 = -3.464101615 Reorder the terms: 3 + P = -3.464101615 Solving 3 + P = -3.464101615 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 = -3.464101615 + -3 Combine like terms: 3 + -3 = 0 0 + P = -3.464101615 + -3 P = -3.464101615 + -3 Combine like terms: -3.464101615 + -3 = -6.464101615 P = -6.464101615 Simplifying P = -6.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. P = {0.464101615, -6.464101615}

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