3p-4-6=-2p(p-5)

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Solution for 3p-4-6=-2p(p-5) equation:


Simplifying
3p + -4 + -6 = -2p(p + -5)

Reorder the terms:
-4 + -6 + 3p = -2p(p + -5)

Combine like terms: -4 + -6 = -10
-10 + 3p = -2p(p + -5)

Reorder the terms:
-10 + 3p = -2p(-5 + p)
-10 + 3p = (-5 * -2p + p * -2p)
-10 + 3p = (10p + -2p2)

Solving
-10 + 3p = 10p + -2p2

Solving for variable 'p'.

Combine like terms: 3p + -10p = -7p
-10 + -7p + 2p2 = 10p + -2p2 + -10p + 2p2

Reorder the terms:
-10 + -7p + 2p2 = 10p + -10p + -2p2 + 2p2

Combine like terms: 10p + -10p = 0
-10 + -7p + 2p2 = 0 + -2p2 + 2p2
-10 + -7p + 2p2 = -2p2 + 2p2

Combine like terms: -2p2 + 2p2 = 0
-10 + -7p + 2p2 = 0

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

Divide each side by '2'.
-5 + -3.5p + p2 = 0

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -3.5p + 5 + p2 = 0 + 5

Reorder the terms:
-5 + 5 + -3.5p + p2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -3.5p + p2 = 0 + 5
-3.5p + p2 = 0 + 5

Combine like terms: 0 + 5 = 5
-3.5p + p2 = 5

The p term is -3.5p.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5p + 3.0625 + p2 = 5 + 3.0625

Reorder the terms:
3.0625 + -3.5p + p2 = 5 + 3.0625

Combine like terms: 5 + 3.0625 = 8.0625
3.0625 + -3.5p + p2 = 8.0625

Factor a perfect square on the left side:
(p + -1.75)(p + -1.75) = 8.0625

Calculate the square root of the right side: 2.839454173

Break this problem into two subproblems by setting 
(p + -1.75) equal to 2.839454173 and -2.839454173.

Subproblem 1

p + -1.75 = 2.839454173 Simplifying p + -1.75 = 2.839454173 Reorder the terms: -1.75 + p = 2.839454173 Solving -1.75 + p = 2.839454173 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + p = 2.839454173 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + p = 2.839454173 + 1.75 p = 2.839454173 + 1.75 Combine like terms: 2.839454173 + 1.75 = 4.589454173 p = 4.589454173 Simplifying p = 4.589454173

Subproblem 2

p + -1.75 = -2.839454173 Simplifying p + -1.75 = -2.839454173 Reorder the terms: -1.75 + p = -2.839454173 Solving -1.75 + p = -2.839454173 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + p = -2.839454173 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + p = -2.839454173 + 1.75 p = -2.839454173 + 1.75 Combine like terms: -2.839454173 + 1.75 = -1.089454173 p = -1.089454173 Simplifying p = -1.089454173

Solution

The solution to the problem is based on the solutions from the subproblems. p = {4.589454173, -1.089454173}

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