-21p-40-2p^2=0

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Solution for -21p-40-2p^2=0 equation:


Simplifying
-21p + -40 + -2p2 = 0

Reorder the terms:
-40 + -21p + -2p2 = 0

Solving
-40 + -21p + -2p2 = 0

Solving for variable 'p'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(40 + 21p + 2p2) = 0

Factor a trinomial.
-1((8 + p)(5 + 2p)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(8 + p)' equal to zero and attempt to solve: Simplifying 8 + p = 0 Solving 8 + p = 0 Move all terms containing p to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + p = 0 + -8 Combine like terms: 8 + -8 = 0 0 + p = 0 + -8 p = 0 + -8 Combine like terms: 0 + -8 = -8 p = -8 Simplifying p = -8

Subproblem 2

Set the factor '(5 + 2p)' equal to zero and attempt to solve: Simplifying 5 + 2p = 0 Solving 5 + 2p = 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 + 2p = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2p = 0 + -5 2p = 0 + -5 Combine like terms: 0 + -5 = -5 2p = -5 Divide each side by '2'. p = -2.5 Simplifying p = -2.5

Solution

p = {-8, -2.5}

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