p^2+18p=17

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Solution for p^2+18p=17 equation:


Simplifying
p2 + 18p = 17

Reorder the terms:
18p + p2 = 17

Solving
18p + p2 = 17

Solving for variable 'p'.

Reorder the terms:
-17 + 18p + p2 = 17 + -17

Combine like terms: 17 + -17 = 0
-17 + 18p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '17' to each side of the equation.
-17 + 18p + 17 + p2 = 0 + 17

Reorder the terms:
-17 + 17 + 18p + p2 = 0 + 17

Combine like terms: -17 + 17 = 0
0 + 18p + p2 = 0 + 17
18p + p2 = 0 + 17

Combine like terms: 0 + 17 = 17
18p + p2 = 17

The p term is 18p.  Take half its coefficient (9).
Square it (81) and add it to both sides.

Add '81' to each side of the equation.
18p + 81 + p2 = 17 + 81

Reorder the terms:
81 + 18p + p2 = 17 + 81

Combine like terms: 17 + 81 = 98
81 + 18p + p2 = 98

Factor a perfect square on the left side:
(p + 9)(p + 9) = 98

Calculate the square root of the right side: 9.899494937

Break this problem into two subproblems by setting 
(p + 9) equal to 9.899494937 and -9.899494937.

Subproblem 1

p + 9 = 9.899494937 Simplifying p + 9 = 9.899494937 Reorder the terms: 9 + p = 9.899494937 Solving 9 + p = 9.899494937 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + p = 9.899494937 + -9 Combine like terms: 9 + -9 = 0 0 + p = 9.899494937 + -9 p = 9.899494937 + -9 Combine like terms: 9.899494937 + -9 = 0.899494937 p = 0.899494937 Simplifying p = 0.899494937

Subproblem 2

p + 9 = -9.899494937 Simplifying p + 9 = -9.899494937 Reorder the terms: 9 + p = -9.899494937 Solving 9 + p = -9.899494937 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + p = -9.899494937 + -9 Combine like terms: 9 + -9 = 0 0 + p = -9.899494937 + -9 p = -9.899494937 + -9 Combine like terms: -9.899494937 + -9 = -18.899494937 p = -18.899494937 Simplifying p = -18.899494937

Solution

The solution to the problem is based on the solutions from the subproblems. p = {0.899494937, -18.899494937}

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