3p(p+2)=10

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Solution for 3p(p+2)=10 equation:


Simplifying
3p(p + 2) = 10

Reorder the terms:
3p(2 + p) = 10
(2 * 3p + p * 3p) = 10
(6p + 3p2) = 10

Solving
6p + 3p2 = 10

Solving for variable 'p'.

Reorder the terms:
-10 + 6p + 3p2 = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + 6p + 3p2 = 0

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

Divide each side by '3'.
-3.333333333 + 2p + p2 = 0

Move the constant term to the right:

Add '3.333333333' to each side of the equation.
-3.333333333 + 2p + 3.333333333 + p2 = 0 + 3.333333333

Reorder the terms:
-3.333333333 + 3.333333333 + 2p + p2 = 0 + 3.333333333

Combine like terms: -3.333333333 + 3.333333333 = 0.000000000
0.000000000 + 2p + p2 = 0 + 3.333333333
2p + p2 = 0 + 3.333333333

Combine like terms: 0 + 3.333333333 = 3.333333333
2p + p2 = 3.333333333

The p term is 2p.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2p + 1 + p2 = 3.333333333 + 1

Reorder the terms:
1 + 2p + p2 = 3.333333333 + 1

Combine like terms: 3.333333333 + 1 = 4.333333333
1 + 2p + p2 = 4.333333333

Factor a perfect square on the left side:
(p + 1)(p + 1) = 4.333333333

Calculate the square root of the right side: 2.081665999

Break this problem into two subproblems by setting 
(p + 1) equal to 2.081665999 and -2.081665999.

Subproblem 1

p + 1 = 2.081665999 Simplifying p + 1 = 2.081665999 Reorder the terms: 1 + p = 2.081665999 Solving 1 + p = 2.081665999 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + p = 2.081665999 + -1 Combine like terms: 1 + -1 = 0 0 + p = 2.081665999 + -1 p = 2.081665999 + -1 Combine like terms: 2.081665999 + -1 = 1.081665999 p = 1.081665999 Simplifying p = 1.081665999

Subproblem 2

p + 1 = -2.081665999 Simplifying p + 1 = -2.081665999 Reorder the terms: 1 + p = -2.081665999 Solving 1 + p = -2.081665999 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + p = -2.081665999 + -1 Combine like terms: 1 + -1 = 0 0 + p = -2.081665999 + -1 p = -2.081665999 + -1 Combine like terms: -2.081665999 + -1 = -3.081665999 p = -3.081665999 Simplifying p = -3.081665999

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.081665999, -3.081665999}

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