25600p=(p+12)(-p+20)

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Solution for 25600p=(p+12)(-p+20) equation:


Simplifying
25600p = (p + 12)(-1p + 20)

Reorder the terms:
25600p = (12 + p)(-1p + 20)

Reorder the terms:
25600p = (12 + p)(20 + -1p)

Multiply (12 + p) * (20 + -1p)
25600p = (12(20 + -1p) + p(20 + -1p))
25600p = ((20 * 12 + -1p * 12) + p(20 + -1p))
25600p = ((240 + -12p) + p(20 + -1p))
25600p = (240 + -12p + (20 * p + -1p * p))
25600p = (240 + -12p + (20p + -1p2))

Combine like terms: -12p + 20p = 8p
25600p = (240 + 8p + -1p2)

Solving
25600p = 240 + 8p + -1p2

Solving for variable 'p'.

Reorder the terms:
-240 + 25600p + -8p + p2 = 240 + 8p + -1p2 + -240 + -8p + p2

Combine like terms: 25600p + -8p = 25592p
-240 + 25592p + p2 = 240 + 8p + -1p2 + -240 + -8p + p2

Reorder the terms:
-240 + 25592p + p2 = 240 + -240 + 8p + -8p + -1p2 + p2

Combine like terms: 240 + -240 = 0
-240 + 25592p + p2 = 0 + 8p + -8p + -1p2 + p2
-240 + 25592p + p2 = 8p + -8p + -1p2 + p2

Combine like terms: 8p + -8p = 0
-240 + 25592p + p2 = 0 + -1p2 + p2
-240 + 25592p + p2 = -1p2 + p2

Combine like terms: -1p2 + p2 = 0
-240 + 25592p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '240' to each side of the equation.
-240 + 25592p + 240 + p2 = 0 + 240

Reorder the terms:
-240 + 240 + 25592p + p2 = 0 + 240

Combine like terms: -240 + 240 = 0
0 + 25592p + p2 = 0 + 240
25592p + p2 = 0 + 240

Combine like terms: 0 + 240 = 240
25592p + p2 = 240

The p term is 25592p.  Take half its coefficient (12796).
Square it (163737616) and add it to both sides.

Add '163737616' to each side of the equation.
25592p + 163737616 + p2 = 240 + 163737616

Reorder the terms:
163737616 + 25592p + p2 = 240 + 163737616

Combine like terms: 240 + 163737616 = 163737856
163737616 + 25592p + p2 = 163737856

Factor a perfect square on the left side:
(p + 12796)(p + 12796) = 163737856

Calculate the square root of the right side: 12796.009377927

Break this problem into two subproblems by setting 
(p + 12796) equal to 12796.009377927 and -12796.009377927.

Subproblem 1

p + 12796 = 12796.009377927 Simplifying p + 12796 = 12796.009377927 Reorder the terms: 12796 + p = 12796.009377927 Solving 12796 + p = 12796.009377927 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-12796' to each side of the equation. 12796 + -12796 + p = 12796.009377927 + -12796 Combine like terms: 12796 + -12796 = 0 0 + p = 12796.009377927 + -12796 p = 12796.009377927 + -12796 Combine like terms: 12796.009377927 + -12796 = 0.009377927 p = 0.009377927 Simplifying p = 0.009377927

Subproblem 2

p + 12796 = -12796.009377927 Simplifying p + 12796 = -12796.009377927 Reorder the terms: 12796 + p = -12796.009377927 Solving 12796 + p = -12796.009377927 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-12796' to each side of the equation. 12796 + -12796 + p = -12796.009377927 + -12796 Combine like terms: 12796 + -12796 = 0 0 + p = -12796.009377927 + -12796 p = -12796.009377927 + -12796 Combine like terms: -12796.009377927 + -12796 = -25592.009377927 p = -25592.009377927 Simplifying p = -25592.009377927

Solution

The solution to the problem is based on the solutions from the subproblems. p = {0.009377927, -25592.009377927}

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