4p^2-19p=-2

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Solution for 4p^2-19p=-2 equation:


Simplifying
4p2 + -19p = -2

Reorder the terms:
-19p + 4p2 = -2

Solving
-19p + 4p2 = -2

Solving for variable 'p'.

Reorder the terms:
2 + -19p + 4p2 = -2 + 2

Combine like terms: -2 + 2 = 0
2 + -19p + 4p2 = 0

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

Divide each side by '4'.
0.5 + -4.75p + p2 = 0

Move the constant term to the right:

Add '-0.5' to each side of the equation.
0.5 + -4.75p + -0.5 + p2 = 0 + -0.5

Reorder the terms:
0.5 + -0.5 + -4.75p + p2 = 0 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + -4.75p + p2 = 0 + -0.5
-4.75p + p2 = 0 + -0.5

Combine like terms: 0 + -0.5 = -0.5
-4.75p + p2 = -0.5

The p term is -4.75p.  Take half its coefficient (-2.375).
Square it (5.640625) and add it to both sides.

Add '5.640625' to each side of the equation.
-4.75p + 5.640625 + p2 = -0.5 + 5.640625

Reorder the terms:
5.640625 + -4.75p + p2 = -0.5 + 5.640625

Combine like terms: -0.5 + 5.640625 = 5.140625
5.640625 + -4.75p + p2 = 5.140625

Factor a perfect square on the left side:
(p + -2.375)(p + -2.375) = 5.140625

Calculate the square root of the right side: 2.267294643

Break this problem into two subproblems by setting 
(p + -2.375) equal to 2.267294643 and -2.267294643.

Subproblem 1

p + -2.375 = 2.267294643 Simplifying p + -2.375 = 2.267294643 Reorder the terms: -2.375 + p = 2.267294643 Solving -2.375 + p = 2.267294643 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + p = 2.267294643 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + p = 2.267294643 + 2.375 p = 2.267294643 + 2.375 Combine like terms: 2.267294643 + 2.375 = 4.642294643 p = 4.642294643 Simplifying p = 4.642294643

Subproblem 2

p + -2.375 = -2.267294643 Simplifying p + -2.375 = -2.267294643 Reorder the terms: -2.375 + p = -2.267294643 Solving -2.375 + p = -2.267294643 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + p = -2.267294643 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + p = -2.267294643 + 2.375 p = -2.267294643 + 2.375 Combine like terms: -2.267294643 + 2.375 = 0.107705357 p = 0.107705357 Simplifying p = 0.107705357

Solution

The solution to the problem is based on the solutions from the subproblems. p = {4.642294643, 0.107705357}

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