9p^2=12p+4

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Solution for 9p^2=12p+4 equation:


Simplifying
9p2 = 12p + 4

Reorder the terms:
9p2 = 4 + 12p

Solving
9p2 = 4 + 12p

Solving for variable 'p'.

Reorder the terms:
-4 + -12p + 9p2 = 4 + 12p + -4 + -12p

Reorder the terms:
-4 + -12p + 9p2 = 4 + -4 + 12p + -12p

Combine like terms: 4 + -4 = 0
-4 + -12p + 9p2 = 0 + 12p + -12p
-4 + -12p + 9p2 = 12p + -12p

Combine like terms: 12p + -12p = 0
-4 + -12p + 9p2 = 0

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

Divide each side by '9'.
-0.4444444444 + -1.333333333p + p2 = 0

Move the constant term to the right:

Add '0.4444444444' to each side of the equation.
-0.4444444444 + -1.333333333p + 0.4444444444 + p2 = 0 + 0.4444444444

Reorder the terms:
-0.4444444444 + 0.4444444444 + -1.333333333p + p2 = 0 + 0.4444444444

Combine like terms: -0.4444444444 + 0.4444444444 = 0.0000000000
0.0000000000 + -1.333333333p + p2 = 0 + 0.4444444444
-1.333333333p + p2 = 0 + 0.4444444444

Combine like terms: 0 + 0.4444444444 = 0.4444444444
-1.333333333p + p2 = 0.4444444444

The p term is -1.333333333p.  Take half its coefficient (-0.6666666665).
Square it (0.4444444442) and add it to both sides.

Add '0.4444444442' to each side of the equation.
-1.333333333p + 0.4444444442 + p2 = 0.4444444444 + 0.4444444442

Reorder the terms:
0.4444444442 + -1.333333333p + p2 = 0.4444444444 + 0.4444444442

Combine like terms: 0.4444444444 + 0.4444444442 = 0.8888888886
0.4444444442 + -1.333333333p + p2 = 0.8888888886

Factor a perfect square on the left side:
(p + -0.6666666665)(p + -0.6666666665) = 0.8888888886

Calculate the square root of the right side: 0.942809041

Break this problem into two subproblems by setting 
(p + -0.6666666665) equal to 0.942809041 and -0.942809041.

Subproblem 1

p + -0.6666666665 = 0.942809041 Simplifying p + -0.6666666665 = 0.942809041 Reorder the terms: -0.6666666665 + p = 0.942809041 Solving -0.6666666665 + p = 0.942809041 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.6666666665' to each side of the equation. -0.6666666665 + 0.6666666665 + p = 0.942809041 + 0.6666666665 Combine like terms: -0.6666666665 + 0.6666666665 = 0.0000000000 0.0000000000 + p = 0.942809041 + 0.6666666665 p = 0.942809041 + 0.6666666665 Combine like terms: 0.942809041 + 0.6666666665 = 1.6094757075 p = 1.6094757075 Simplifying p = 1.6094757075

Subproblem 2

p + -0.6666666665 = -0.942809041 Simplifying p + -0.6666666665 = -0.942809041 Reorder the terms: -0.6666666665 + p = -0.942809041 Solving -0.6666666665 + p = -0.942809041 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.6666666665' to each side of the equation. -0.6666666665 + 0.6666666665 + p = -0.942809041 + 0.6666666665 Combine like terms: -0.6666666665 + 0.6666666665 = 0.0000000000 0.0000000000 + p = -0.942809041 + 0.6666666665 p = -0.942809041 + 0.6666666665 Combine like terms: -0.942809041 + 0.6666666665 = -0.2761423745 p = -0.2761423745 Simplifying p = -0.2761423745

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.6094757075, -0.2761423745}

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