-5p^2=-16p-3

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Solution for -5p^2=-16p-3 equation:


Simplifying
-5p2 = -16p + -3

Reorder the terms:
-5p2 = -3 + -16p

Solving
-5p2 = -3 + -16p

Solving for variable 'p'.

Reorder the terms:
3 + 16p + -5p2 = -3 + -16p + 3 + 16p

Reorder the terms:
3 + 16p + -5p2 = -3 + 3 + -16p + 16p

Combine like terms: -3 + 3 = 0
3 + 16p + -5p2 = 0 + -16p + 16p
3 + 16p + -5p2 = -16p + 16p

Combine like terms: -16p + 16p = 0
3 + 16p + -5p2 = 0

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

Divide each side by '-5'.
-0.6 + -3.2p + p2 = 0

Move the constant term to the right:

Add '0.6' to each side of the equation.
-0.6 + -3.2p + 0.6 + p2 = 0 + 0.6

Reorder the terms:
-0.6 + 0.6 + -3.2p + p2 = 0 + 0.6

Combine like terms: -0.6 + 0.6 = 0.0
0.0 + -3.2p + p2 = 0 + 0.6
-3.2p + p2 = 0 + 0.6

Combine like terms: 0 + 0.6 = 0.6
-3.2p + p2 = 0.6

The p term is -3.2p.  Take half its coefficient (-1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
-3.2p + 2.56 + p2 = 0.6 + 2.56

Reorder the terms:
2.56 + -3.2p + p2 = 0.6 + 2.56

Combine like terms: 0.6 + 2.56 = 3.16
2.56 + -3.2p + p2 = 3.16

Factor a perfect square on the left side:
(p + -1.6)(p + -1.6) = 3.16

Calculate the square root of the right side: 1.777638883

Break this problem into two subproblems by setting 
(p + -1.6) equal to 1.777638883 and -1.777638883.

Subproblem 1

p + -1.6 = 1.777638883 Simplifying p + -1.6 = 1.777638883 Reorder the terms: -1.6 + p = 1.777638883 Solving -1.6 + p = 1.777638883 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + p = 1.777638883 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + p = 1.777638883 + 1.6 p = 1.777638883 + 1.6 Combine like terms: 1.777638883 + 1.6 = 3.377638883 p = 3.377638883 Simplifying p = 3.377638883

Subproblem 2

p + -1.6 = -1.777638883 Simplifying p + -1.6 = -1.777638883 Reorder the terms: -1.6 + p = -1.777638883 Solving -1.6 + p = -1.777638883 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + p = -1.777638883 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + p = -1.777638883 + 1.6 p = -1.777638883 + 1.6 Combine like terms: -1.777638883 + 1.6 = -0.177638883 p = -0.177638883 Simplifying p = -0.177638883

Solution

The solution to the problem is based on the solutions from the subproblems. p = {3.377638883, -0.177638883}

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