p^2-2p=2

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Solution for p^2-2p=2 equation:


Simplifying
p2 + -2p = 2

Reorder the terms:
-2p + p2 = 2

Solving
-2p + p2 = 2

Solving for variable 'p'.

Reorder the terms:
-2 + -2p + p2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + -2p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -2p + 2 + p2 = 0 + 2

Reorder the terms:
-2 + 2 + -2p + p2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -2p + p2 = 0 + 2
-2p + p2 = 0 + 2

Combine like terms: 0 + 2 = 2
-2p + p2 = 2

The p term is -2p.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2p + 1 + p2 = 2 + 1

Reorder the terms:
1 + -2p + p2 = 2 + 1

Combine like terms: 2 + 1 = 3
1 + -2p + p2 = 3

Factor a perfect square on the left side:
(p + -1)(p + -1) = 3

Calculate the square root of the right side: 1.732050808

Break this problem into two subproblems by setting 
(p + -1) equal to 1.732050808 and -1.732050808.

Subproblem 1

p + -1 = 1.732050808 Simplifying p + -1 = 1.732050808 Reorder the terms: -1 + p = 1.732050808 Solving -1 + p = 1.732050808 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + p = 1.732050808 + 1 Combine like terms: -1 + 1 = 0 0 + p = 1.732050808 + 1 p = 1.732050808 + 1 Combine like terms: 1.732050808 + 1 = 2.732050808 p = 2.732050808 Simplifying p = 2.732050808

Subproblem 2

p + -1 = -1.732050808 Simplifying p + -1 = -1.732050808 Reorder the terms: -1 + p = -1.732050808 Solving -1 + p = -1.732050808 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + p = -1.732050808 + 1 Combine like terms: -1 + 1 = 0 0 + p = -1.732050808 + 1 p = -1.732050808 + 1 Combine like terms: -1.732050808 + 1 = -0.732050808 p = -0.732050808 Simplifying p = -0.732050808

Solution

The solution to the problem is based on the solutions from the subproblems. p = {2.732050808, -0.732050808}

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