3p(3p-8)-8=9p(p-3)4

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Solution for 3p(3p-8)-8=9p(p-3)4 equation:


Simplifying
3p(3p + -8) + -8 = 9p(p + -3) * 4

Reorder the terms:
3p(-8 + 3p) + -8 = 9p(p + -3) * 4
(-8 * 3p + 3p * 3p) + -8 = 9p(p + -3) * 4
(-24p + 9p2) + -8 = 9p(p + -3) * 4

Reorder the terms:
-8 + -24p + 9p2 = 9p(p + -3) * 4

Reorder the terms:
-8 + -24p + 9p2 = 9p(-3 + p) * 4

Reorder the terms for easier multiplication:
-8 + -24p + 9p2 = 9 * 4p(-3 + p)

Multiply 9 * 4
-8 + -24p + 9p2 = 36p(-3 + p)
-8 + -24p + 9p2 = (-3 * 36p + p * 36p)
-8 + -24p + 9p2 = (-108p + 36p2)

Solving
-8 + -24p + 9p2 = -108p + 36p2

Solving for variable 'p'.

Reorder the terms:
-8 + -24p + 108p + 9p2 + -36p2 = -108p + 36p2 + 108p + -36p2

Combine like terms: -24p + 108p = 84p
-8 + 84p + 9p2 + -36p2 = -108p + 36p2 + 108p + -36p2

Combine like terms: 9p2 + -36p2 = -27p2
-8 + 84p + -27p2 = -108p + 36p2 + 108p + -36p2

Reorder the terms:
-8 + 84p + -27p2 = -108p + 108p + 36p2 + -36p2

Combine like terms: -108p + 108p = 0
-8 + 84p + -27p2 = 0 + 36p2 + -36p2
-8 + 84p + -27p2 = 36p2 + -36p2

Combine like terms: 36p2 + -36p2 = 0
-8 + 84p + -27p2 = 0

Begin completing the square.  Divide all terms by
-27 the coefficient of the squared term: 

Divide each side by '-27'.
0.2962962963 + -3.111111111p + p2 = 0

Move the constant term to the right:

Add '-0.2962962963' to each side of the equation.
0.2962962963 + -3.111111111p + -0.2962962963 + p2 = 0 + -0.2962962963

Reorder the terms:
0.2962962963 + -0.2962962963 + -3.111111111p + p2 = 0 + -0.2962962963

Combine like terms: 0.2962962963 + -0.2962962963 = 0.0000000000
0.0000000000 + -3.111111111p + p2 = 0 + -0.2962962963
-3.111111111p + p2 = 0 + -0.2962962963

Combine like terms: 0 + -0.2962962963 = -0.2962962963
-3.111111111p + p2 = -0.2962962963

The p term is -3.111111111p.  Take half its coefficient (-1.555555556).
Square it (2.419753088) and add it to both sides.

Add '2.419753088' to each side of the equation.
-3.111111111p + 2.419753088 + p2 = -0.2962962963 + 2.419753088

Reorder the terms:
2.419753088 + -3.111111111p + p2 = -0.2962962963 + 2.419753088

Combine like terms: -0.2962962963 + 2.419753088 = 2.1234567917
2.419753088 + -3.111111111p + p2 = 2.1234567917

Factor a perfect square on the left side:
(p + -1.555555556)(p + -1.555555556) = 2.1234567917

Calculate the square root of the right side: 1.457208561

Break this problem into two subproblems by setting 
(p + -1.555555556) equal to 1.457208561 and -1.457208561.

Subproblem 1

p + -1.555555556 = 1.457208561 Simplifying p + -1.555555556 = 1.457208561 Reorder the terms: -1.555555556 + p = 1.457208561 Solving -1.555555556 + p = 1.457208561 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.555555556' to each side of the equation. -1.555555556 + 1.555555556 + p = 1.457208561 + 1.555555556 Combine like terms: -1.555555556 + 1.555555556 = 0.000000000 0.000000000 + p = 1.457208561 + 1.555555556 p = 1.457208561 + 1.555555556 Combine like terms: 1.457208561 + 1.555555556 = 3.012764117 p = 3.012764117 Simplifying p = 3.012764117

Subproblem 2

p + -1.555555556 = -1.457208561 Simplifying p + -1.555555556 = -1.457208561 Reorder the terms: -1.555555556 + p = -1.457208561 Solving -1.555555556 + p = -1.457208561 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.555555556' to each side of the equation. -1.555555556 + 1.555555556 + p = -1.457208561 + 1.555555556 Combine like terms: -1.555555556 + 1.555555556 = 0.000000000 0.000000000 + p = -1.457208561 + 1.555555556 p = -1.457208561 + 1.555555556 Combine like terms: -1.457208561 + 1.555555556 = 0.098346995 p = 0.098346995 Simplifying p = 0.098346995

Solution

The solution to the problem is based on the solutions from the subproblems. p = {3.012764117, 0.098346995}

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