p^2-5p=43

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Solution for p^2-5p=43 equation:


Simplifying
p2 + -5p = 43

Reorder the terms:
-5p + p2 = 43

Solving
-5p + p2 = 43

Solving for variable 'p'.

Reorder the terms:
-43 + -5p + p2 = 43 + -43

Combine like terms: 43 + -43 = 0
-43 + -5p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '43' to each side of the equation.
-43 + -5p + 43 + p2 = 0 + 43

Reorder the terms:
-43 + 43 + -5p + p2 = 0 + 43

Combine like terms: -43 + 43 = 0
0 + -5p + p2 = 0 + 43
-5p + p2 = 0 + 43

Combine like terms: 0 + 43 = 43
-5p + p2 = 43

The p term is -5p.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5p + 6.25 + p2 = 43 + 6.25

Reorder the terms:
6.25 + -5p + p2 = 43 + 6.25

Combine like terms: 43 + 6.25 = 49.25
6.25 + -5p + p2 = 49.25

Factor a perfect square on the left side:
(p + -2.5)(p + -2.5) = 49.25

Calculate the square root of the right side: 7.017834424

Break this problem into two subproblems by setting 
(p + -2.5) equal to 7.017834424 and -7.017834424.

Subproblem 1

p + -2.5 = 7.017834424 Simplifying p + -2.5 = 7.017834424 Reorder the terms: -2.5 + p = 7.017834424 Solving -2.5 + p = 7.017834424 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + p = 7.017834424 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + p = 7.017834424 + 2.5 p = 7.017834424 + 2.5 Combine like terms: 7.017834424 + 2.5 = 9.517834424 p = 9.517834424 Simplifying p = 9.517834424

Subproblem 2

p + -2.5 = -7.017834424 Simplifying p + -2.5 = -7.017834424 Reorder the terms: -2.5 + p = -7.017834424 Solving -2.5 + p = -7.017834424 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + p = -7.017834424 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + p = -7.017834424 + 2.5 p = -7.017834424 + 2.5 Combine like terms: -7.017834424 + 2.5 = -4.517834424 p = -4.517834424 Simplifying p = -4.517834424

Solution

The solution to the problem is based on the solutions from the subproblems. p = {9.517834424, -4.517834424}

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