-84=s(s+19)

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Solution for -84=s(s+19) equation:


Simplifying
-84 = s(s + 19)

Reorder the terms:
-84 = s(19 + s)
-84 = (19 * s + s * s)
-84 = (19s + s2)

Solving
-84 = 19s + s2

Solving for variable 's'.

Reorder the terms:
-84 + -19s + -1s2 = 19s + -19s + s2 + -1s2

Combine like terms: 19s + -19s = 0
-84 + -19s + -1s2 = 0 + s2 + -1s2
-84 + -19s + -1s2 = s2 + -1s2

Combine like terms: s2 + -1s2 = 0
-84 + -19s + -1s2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(84 + 19s + s2) = 0

Factor a trinomial.
-1((12 + s)(7 + s)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(12 + s)' equal to zero and attempt to solve: Simplifying 12 + s = 0 Solving 12 + s = 0 Move all terms containing s to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + s = 0 + -12 Combine like terms: 12 + -12 = 0 0 + s = 0 + -12 s = 0 + -12 Combine like terms: 0 + -12 = -12 s = -12 Simplifying s = -12

Subproblem 2

Set the factor '(7 + s)' equal to zero and attempt to solve: Simplifying 7 + s = 0 Solving 7 + s = 0 Move all terms containing s to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + s = 0 + -7 Combine like terms: 7 + -7 = 0 0 + s = 0 + -7 s = 0 + -7 Combine like terms: 0 + -7 = -7 s = -7 Simplifying s = -7

Solution

s = {-12, -7}

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