(7p^2-6p-1)-(-8p^2+3p+3)=

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Solution for (7p^2-6p-1)-(-8p^2+3p+3)= equation:


Simplifying
(7p2 + -6p + -1) + -1(-8p2 + 3p + 3) = 0

Reorder the terms:
(-1 + -6p + 7p2) + -1(-8p2 + 3p + 3) = 0

Remove parenthesis around (-1 + -6p + 7p2)
-1 + -6p + 7p2 + -1(-8p2 + 3p + 3) = 0

Reorder the terms:
-1 + -6p + 7p2 + -1(3 + 3p + -8p2) = 0
-1 + -6p + 7p2 + (3 * -1 + 3p * -1 + -8p2 * -1) = 0
-1 + -6p + 7p2 + (-3 + -3p + 8p2) = 0

Reorder the terms:
-1 + -3 + -6p + -3p + 7p2 + 8p2 = 0

Combine like terms: -1 + -3 = -4
-4 + -6p + -3p + 7p2 + 8p2 = 0

Combine like terms: -6p + -3p = -9p
-4 + -9p + 7p2 + 8p2 = 0

Combine like terms: 7p2 + 8p2 = 15p2
-4 + -9p + 15p2 = 0

Solving
-4 + -9p + 15p2 = 0

Solving for variable 'p'.

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

Divide each side by '15'.
-0.2666666667 + -0.6p + p2 = 0

Move the constant term to the right:

Add '0.2666666667' to each side of the equation.
-0.2666666667 + -0.6p + 0.2666666667 + p2 = 0 + 0.2666666667

Reorder the terms:
-0.2666666667 + 0.2666666667 + -0.6p + p2 = 0 + 0.2666666667

Combine like terms: -0.2666666667 + 0.2666666667 = 0.0000000000
0.0000000000 + -0.6p + p2 = 0 + 0.2666666667
-0.6p + p2 = 0 + 0.2666666667

Combine like terms: 0 + 0.2666666667 = 0.2666666667
-0.6p + p2 = 0.2666666667

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 = 0.2666666667 + 0.09

Reorder the terms:
0.09 + -0.6p + p2 = 0.2666666667 + 0.09

Combine like terms: 0.2666666667 + 0.09 = 0.3566666667
0.09 + -0.6p + p2 = 0.3566666667

Factor a perfect square on the left side:
(p + -0.3)(p + -0.3) = 0.3566666667

Calculate the square root of the right side: 0.597215762

Break this problem into two subproblems by setting 
(p + -0.3) equal to 0.597215762 and -0.597215762.

Subproblem 1

p + -0.3 = 0.597215762 Simplifying p + -0.3 = 0.597215762 Reorder the terms: -0.3 + p = 0.597215762 Solving -0.3 + p = 0.597215762 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 = 0.597215762 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + p = 0.597215762 + 0.3 p = 0.597215762 + 0.3 Combine like terms: 0.597215762 + 0.3 = 0.897215762 p = 0.897215762 Simplifying p = 0.897215762

Subproblem 2

p + -0.3 = -0.597215762 Simplifying p + -0.3 = -0.597215762 Reorder the terms: -0.3 + p = -0.597215762 Solving -0.3 + p = -0.597215762 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 = -0.597215762 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + p = -0.597215762 + 0.3 p = -0.597215762 + 0.3 Combine like terms: -0.597215762 + 0.3 = -0.297215762 p = -0.297215762 Simplifying p = -0.297215762

Solution

The solution to the problem is based on the solutions from the subproblems. p = {0.897215762, -0.297215762}

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