3p^2+18p-11=0

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Solution for 3p^2+18p-11=0 equation:


Simplifying
3p2 + 18p + -11 = 0

Reorder the terms:
-11 + 18p + 3p2 = 0

Solving
-11 + 18p + 3p2 = 0

Solving for variable 'p'.

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

Divide each side by '3'.
-3.666666667 + 6p + p2 = 0

Move the constant term to the right:

Add '3.666666667' to each side of the equation.
-3.666666667 + 6p + 3.666666667 + p2 = 0 + 3.666666667

Reorder the terms:
-3.666666667 + 3.666666667 + 6p + p2 = 0 + 3.666666667

Combine like terms: -3.666666667 + 3.666666667 = 0.000000000
0.000000000 + 6p + p2 = 0 + 3.666666667
6p + p2 = 0 + 3.666666667

Combine like terms: 0 + 3.666666667 = 3.666666667
6p + p2 = 3.666666667

The p term is 6p.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6p + 9 + p2 = 3.666666667 + 9

Reorder the terms:
9 + 6p + p2 = 3.666666667 + 9

Combine like terms: 3.666666667 + 9 = 12.666666667
9 + 6p + p2 = 12.666666667

Factor a perfect square on the left side:
(p + 3)(p + 3) = 12.666666667

Calculate the square root of the right side: 3.559026084

Break this problem into two subproblems by setting 
(p + 3) equal to 3.559026084 and -3.559026084.

Subproblem 1

p + 3 = 3.559026084 Simplifying p + 3 = 3.559026084 Reorder the terms: 3 + p = 3.559026084 Solving 3 + p = 3.559026084 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + p = 3.559026084 + -3 Combine like terms: 3 + -3 = 0 0 + p = 3.559026084 + -3 p = 3.559026084 + -3 Combine like terms: 3.559026084 + -3 = 0.559026084 p = 0.559026084 Simplifying p = 0.559026084

Subproblem 2

p + 3 = -3.559026084 Simplifying p + 3 = -3.559026084 Reorder the terms: 3 + p = -3.559026084 Solving 3 + p = -3.559026084 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + p = -3.559026084 + -3 Combine like terms: 3 + -3 = 0 0 + p = -3.559026084 + -3 p = -3.559026084 + -3 Combine like terms: -3.559026084 + -3 = -6.559026084 p = -6.559026084 Simplifying p = -6.559026084

Solution

The solution to the problem is based on the solutions from the subproblems. p = {0.559026084, -6.559026084}

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