3p(p+2)=20-p

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Solution for 3p(p+2)=20-p equation:


Simplifying
3p(p + 2) = 20 + -1p

Reorder the terms:
3p(2 + p) = 20 + -1p
(2 * 3p + p * 3p) = 20 + -1p
(6p + 3p2) = 20 + -1p

Solving
6p + 3p2 = 20 + -1p

Solving for variable 'p'.

Reorder the terms:
-20 + 6p + p + 3p2 = 20 + -1p + -20 + p

Combine like terms: 6p + p = 7p
-20 + 7p + 3p2 = 20 + -1p + -20 + p

Reorder the terms:
-20 + 7p + 3p2 = 20 + -20 + -1p + p

Combine like terms: 20 + -20 = 0
-20 + 7p + 3p2 = 0 + -1p + p
-20 + 7p + 3p2 = -1p + p

Combine like terms: -1p + p = 0
-20 + 7p + 3p2 = 0

Factor a trinomial.
(-4 + -1p)(5 + -3p) = 0

Subproblem 1

Set the factor '(-4 + -1p)' equal to zero and attempt to solve: Simplifying -4 + -1p = 0 Solving -4 + -1p = 0 Move all terms containing p to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1p = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1p = 0 + 4 -1p = 0 + 4 Combine like terms: 0 + 4 = 4 -1p = 4 Divide each side by '-1'. p = -4 Simplifying p = -4

Subproblem 2

Set the factor '(5 + -3p)' equal to zero and attempt to solve: Simplifying 5 + -3p = 0 Solving 5 + -3p = 0 Move all terms containing p to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3p = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3p = 0 + -5 -3p = 0 + -5 Combine like terms: 0 + -5 = -5 -3p = -5 Divide each side by '-3'. p = 1.666666667 Simplifying p = 1.666666667

Solution

p = {-4, 1.666666667}

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