(8p^2-5p)-(3p^2-2p+4)=

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Solution for (8p^2-5p)-(3p^2-2p+4)= equation:


Simplifying
(8p2 + -5p) + -1(3p2 + -2p + 4) = 0

Reorder the terms:
(-5p + 8p2) + -1(3p2 + -2p + 4) = 0

Remove parenthesis around (-5p + 8p2)
-5p + 8p2 + -1(3p2 + -2p + 4) = 0

Reorder the terms:
-5p + 8p2 + -1(4 + -2p + 3p2) = 0
-5p + 8p2 + (4 * -1 + -2p * -1 + 3p2 * -1) = 0
-5p + 8p2 + (-4 + 2p + -3p2) = 0

Reorder the terms:
-4 + -5p + 2p + 8p2 + -3p2 = 0

Combine like terms: -5p + 2p = -3p
-4 + -3p + 8p2 + -3p2 = 0

Combine like terms: 8p2 + -3p2 = 5p2
-4 + -3p + 5p2 = 0

Solving
-4 + -3p + 5p2 = 0

Solving for variable 'p'.

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

Divide each side by '5'.
-0.8 + -0.6p + p2 = 0

Move the constant term to the right:

Add '0.8' to each side of the equation.
-0.8 + -0.6p + 0.8 + p2 = 0 + 0.8

Reorder the terms:
-0.8 + 0.8 + -0.6p + p2 = 0 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + -0.6p + p2 = 0 + 0.8
-0.6p + p2 = 0 + 0.8

Combine like terms: 0 + 0.8 = 0.8
-0.6p + p2 = 0.8

The p term is -0.6p.  Take half its coefficient (-0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
-0.6p + 0.09 + p2 = 0.8 + 0.09

Reorder the terms:
0.09 + -0.6p + p2 = 0.8 + 0.09

Combine like terms: 0.8 + 0.09 = 0.89
0.09 + -0.6p + p2 = 0.89

Factor a perfect square on the left side:
(p + -0.3)(p + -0.3) = 0.89

Calculate the square root of the right side: 0.943398113

Break this problem into two subproblems by setting 
(p + -0.3) equal to 0.943398113 and -0.943398113.

Subproblem 1

p + -0.3 = 0.943398113 Simplifying p + -0.3 = 0.943398113 Reorder the terms: -0.3 + p = 0.943398113 Solving -0.3 + p = 0.943398113 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + p = 0.943398113 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + p = 0.943398113 + 0.3 p = 0.943398113 + 0.3 Combine like terms: 0.943398113 + 0.3 = 1.243398113 p = 1.243398113 Simplifying p = 1.243398113

Subproblem 2

p + -0.3 = -0.943398113 Simplifying p + -0.3 = -0.943398113 Reorder the terms: -0.3 + p = -0.943398113 Solving -0.3 + p = -0.943398113 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + p = -0.943398113 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + p = -0.943398113 + 0.3 p = -0.943398113 + 0.3 Combine like terms: -0.943398113 + 0.3 = -0.643398113 p = -0.643398113 Simplifying p = -0.643398113

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.243398113, -0.643398113}

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