9p^2-12=4p

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


Simplifying
9p2 + -12 = 4p

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

Solving
-12 + 9p2 = 4p

Solving for variable 'p'.

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

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

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

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

Move the constant term to the right:

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

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

Combine like terms: -1.333333333 + 1.333333333 = 0.000000000
0.000000000 + -0.4444444444p + p2 = 0 + 1.333333333
-0.4444444444p + p2 = 0 + 1.333333333

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

The p term is -0.4444444444p.  Take half its coefficient (-0.2222222222).
Square it (0.04938271604) and add it to both sides.

Add '0.04938271604' to each side of the equation.
-0.4444444444p + 0.04938271604 + p2 = 1.333333333 + 0.04938271604

Reorder the terms:
0.04938271604 + -0.4444444444p + p2 = 1.333333333 + 0.04938271604

Combine like terms: 1.333333333 + 0.04938271604 = 1.38271604904
0.04938271604 + -0.4444444444p + p2 = 1.38271604904

Factor a perfect square on the left side:
(p + -0.2222222222)(p + -0.2222222222) = 1.38271604904

Calculate the square root of the right side: 1.175889471

Break this problem into two subproblems by setting 
(p + -0.2222222222) equal to 1.175889471 and -1.175889471.

Subproblem 1

p + -0.2222222222 = 1.175889471 Simplifying p + -0.2222222222 = 1.175889471 Reorder the terms: -0.2222222222 + p = 1.175889471 Solving -0.2222222222 + p = 1.175889471 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.2222222222' to each side of the equation. -0.2222222222 + 0.2222222222 + p = 1.175889471 + 0.2222222222 Combine like terms: -0.2222222222 + 0.2222222222 = 0.0000000000 0.0000000000 + p = 1.175889471 + 0.2222222222 p = 1.175889471 + 0.2222222222 Combine like terms: 1.175889471 + 0.2222222222 = 1.3981116932 p = 1.3981116932 Simplifying p = 1.3981116932

Subproblem 2

p + -0.2222222222 = -1.175889471 Simplifying p + -0.2222222222 = -1.175889471 Reorder the terms: -0.2222222222 + p = -1.175889471 Solving -0.2222222222 + p = -1.175889471 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.2222222222' to each side of the equation. -0.2222222222 + 0.2222222222 + p = -1.175889471 + 0.2222222222 Combine like terms: -0.2222222222 + 0.2222222222 = 0.0000000000 0.0000000000 + p = -1.175889471 + 0.2222222222 p = -1.175889471 + 0.2222222222 Combine like terms: -1.175889471 + 0.2222222222 = -0.9536672488 p = -0.9536672488 Simplifying p = -0.9536672488

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.3981116932, -0.9536672488}

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