(3s-4)(s+5)=0

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Solution for (3s-4)(s+5)=0 equation:


Simplifying
(3s + -4)(s + 5) = 0

Reorder the terms:
(-4 + 3s)(s + 5) = 0

Reorder the terms:
(-4 + 3s)(5 + s) = 0

Multiply (-4 + 3s) * (5 + s)
(-4(5 + s) + 3s * (5 + s)) = 0
((5 * -4 + s * -4) + 3s * (5 + s)) = 0
((-20 + -4s) + 3s * (5 + s)) = 0
(-20 + -4s + (5 * 3s + s * 3s)) = 0
(-20 + -4s + (15s + 3s2)) = 0

Combine like terms: -4s + 15s = 11s
(-20 + 11s + 3s2) = 0

Solving
-20 + 11s + 3s2 = 0

Solving for variable 's'.

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

Subproblem 1

Set the factor '(-5 + -1s)' equal to zero and attempt to solve: Simplifying -5 + -1s = 0 Solving -5 + -1s = 0 Move all terms containing s to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1s = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1s = 0 + 5 -1s = 0 + 5 Combine like terms: 0 + 5 = 5 -1s = 5 Divide each side by '-1'. s = -5 Simplifying s = -5

Subproblem 2

Set the factor '(4 + -3s)' equal to zero and attempt to solve: Simplifying 4 + -3s = 0 Solving 4 + -3s = 0 Move all terms containing s to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -3s = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3s = 0 + -4 -3s = 0 + -4 Combine like terms: 0 + -4 = -4 -3s = -4 Divide each side by '-3'. s = 1.333333333 Simplifying s = 1.333333333

Solution

s = {-5, 1.333333333}

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