-4p^2+168p-295=0

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Solution for -4p^2+168p-295=0 equation:


Simplifying
-4p2 + 168p + -295 = 0

Reorder the terms:
-295 + 168p + -4p2 = 0

Solving
-295 + 168p + -4p2 = 0

Solving for variable 'p'.

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

Divide each side by '-4'.
73.75 + -42p + p2 = 0

Move the constant term to the right:

Add '-73.75' to each side of the equation.
73.75 + -42p + -73.75 + p2 = 0 + -73.75

Reorder the terms:
73.75 + -73.75 + -42p + p2 = 0 + -73.75

Combine like terms: 73.75 + -73.75 = 0.00
0.00 + -42p + p2 = 0 + -73.75
-42p + p2 = 0 + -73.75

Combine like terms: 0 + -73.75 = -73.75
-42p + p2 = -73.75

The p term is -42p.  Take half its coefficient (-21).
Square it (441) and add it to both sides.

Add '441' to each side of the equation.
-42p + 441 + p2 = -73.75 + 441

Reorder the terms:
441 + -42p + p2 = -73.75 + 441

Combine like terms: -73.75 + 441 = 367.25
441 + -42p + p2 = 367.25

Factor a perfect square on the left side:
(p + -21)(p + -21) = 367.25

Calculate the square root of the right side: 19.163767897

Break this problem into two subproblems by setting 
(p + -21) equal to 19.163767897 and -19.163767897.

Subproblem 1

p + -21 = 19.163767897 Simplifying p + -21 = 19.163767897 Reorder the terms: -21 + p = 19.163767897 Solving -21 + p = 19.163767897 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + p = 19.163767897 + 21 Combine like terms: -21 + 21 = 0 0 + p = 19.163767897 + 21 p = 19.163767897 + 21 Combine like terms: 19.163767897 + 21 = 40.163767897 p = 40.163767897 Simplifying p = 40.163767897

Subproblem 2

p + -21 = -19.163767897 Simplifying p + -21 = -19.163767897 Reorder the terms: -21 + p = -19.163767897 Solving -21 + p = -19.163767897 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + p = -19.163767897 + 21 Combine like terms: -21 + 21 = 0 0 + p = -19.163767897 + 21 p = -19.163767897 + 21 Combine like terms: -19.163767897 + 21 = 1.836232103 p = 1.836232103 Simplifying p = 1.836232103

Solution

The solution to the problem is based on the solutions from the subproblems. p = {40.163767897, 1.836232103}

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