p^2-10p+26=8

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Solution for p^2-10p+26=8 equation:


Simplifying
p2 + -10p + 26 = 8

Reorder the terms:
26 + -10p + p2 = 8

Solving
26 + -10p + p2 = 8

Solving for variable 'p'.

Reorder the terms:
26 + -8 + -10p + p2 = 8 + -8

Combine like terms: 26 + -8 = 18
18 + -10p + p2 = 8 + -8

Combine like terms: 8 + -8 = 0
18 + -10p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-18' to each side of the equation.
18 + -10p + -18 + p2 = 0 + -18

Reorder the terms:
18 + -18 + -10p + p2 = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -10p + p2 = 0 + -18
-10p + p2 = 0 + -18

Combine like terms: 0 + -18 = -18
-10p + p2 = -18

The p term is -10p.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10p + 25 + p2 = -18 + 25

Reorder the terms:
25 + -10p + p2 = -18 + 25

Combine like terms: -18 + 25 = 7
25 + -10p + p2 = 7

Factor a perfect square on the left side:
(p + -5)(p + -5) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(p + -5) equal to 2.645751311 and -2.645751311.

Subproblem 1

p + -5 = 2.645751311 Simplifying p + -5 = 2.645751311 Reorder the terms: -5 + p = 2.645751311 Solving -5 + p = 2.645751311 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + p = 2.645751311 + 5 Combine like terms: -5 + 5 = 0 0 + p = 2.645751311 + 5 p = 2.645751311 + 5 Combine like terms: 2.645751311 + 5 = 7.645751311 p = 7.645751311 Simplifying p = 7.645751311

Subproblem 2

p + -5 = -2.645751311 Simplifying p + -5 = -2.645751311 Reorder the terms: -5 + p = -2.645751311 Solving -5 + p = -2.645751311 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + p = -2.645751311 + 5 Combine like terms: -5 + 5 = 0 0 + p = -2.645751311 + 5 p = -2.645751311 + 5 Combine like terms: -2.645751311 + 5 = 2.354248689 p = 2.354248689 Simplifying p = 2.354248689

Solution

The solution to the problem is based on the solutions from the subproblems. p = {7.645751311, 2.354248689}

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