3.15p^2-5.89p=2.63

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Solution for 3.15p^2-5.89p=2.63 equation:


Simplifying
3.15p2 + -5.89p = 2.63

Reorder the terms:
-5.89p + 3.15p2 = 2.63

Solving
-5.89p + 3.15p2 = 2.63

Solving for variable 'p'.

Reorder the terms:
-2.63 + -5.89p + 3.15p2 = 2.63 + -2.63

Combine like terms: 2.63 + -2.63 = 0.00
-2.63 + -5.89p + 3.15p2 = 0.00

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

Divide each side by '3.15'.
-0.8349206349 + -1.86984127p + p2 = 0

Move the constant term to the right:

Add '0.8349206349' to each side of the equation.
-0.8349206349 + -1.86984127p + 0.8349206349 + p2 = 0 + 0.8349206349

Reorder the terms:
-0.8349206349 + 0.8349206349 + -1.86984127p + p2 = 0 + 0.8349206349

Combine like terms: -0.8349206349 + 0.8349206349 = 0.0000000000
0.0000000000 + -1.86984127p + p2 = 0 + 0.8349206349
-1.86984127p + p2 = 0 + 0.8349206349

Combine like terms: 0 + 0.8349206349 = 0.8349206349
-1.86984127p + p2 = 0.8349206349

The p term is -1.86984127p.  Take half its coefficient (-0.934920635).
Square it (0.8740765937) and add it to both sides.

Add '0.8740765937' to each side of the equation.
-1.86984127p + 0.8740765937 + p2 = 0.8349206349 + 0.8740765937

Reorder the terms:
0.8740765937 + -1.86984127p + p2 = 0.8349206349 + 0.8740765937

Combine like terms: 0.8349206349 + 0.8740765937 = 1.7089972286
0.8740765937 + -1.86984127p + p2 = 1.7089972286

Factor a perfect square on the left side:
(p + -0.934920635)(p + -0.934920635) = 1.7089972286

Calculate the square root of the right side: 1.307286208

Break this problem into two subproblems by setting 
(p + -0.934920635) equal to 1.307286208 and -1.307286208.

Subproblem 1

p + -0.934920635 = 1.307286208 Simplifying p + -0.934920635 = 1.307286208 Reorder the terms: -0.934920635 + p = 1.307286208 Solving -0.934920635 + p = 1.307286208 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.934920635' to each side of the equation. -0.934920635 + 0.934920635 + p = 1.307286208 + 0.934920635 Combine like terms: -0.934920635 + 0.934920635 = 0.000000000 0.000000000 + p = 1.307286208 + 0.934920635 p = 1.307286208 + 0.934920635 Combine like terms: 1.307286208 + 0.934920635 = 2.242206843 p = 2.242206843 Simplifying p = 2.242206843

Subproblem 2

p + -0.934920635 = -1.307286208 Simplifying p + -0.934920635 = -1.307286208 Reorder the terms: -0.934920635 + p = -1.307286208 Solving -0.934920635 + p = -1.307286208 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '0.934920635' to each side of the equation. -0.934920635 + 0.934920635 + p = -1.307286208 + 0.934920635 Combine like terms: -0.934920635 + 0.934920635 = 0.000000000 0.000000000 + p = -1.307286208 + 0.934920635 p = -1.307286208 + 0.934920635 Combine like terms: -1.307286208 + 0.934920635 = -0.372365573 p = -0.372365573 Simplifying p = -0.372365573

Solution

The solution to the problem is based on the solutions from the subproblems. p = {2.242206843, -0.372365573}

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