(4s+5)(3s+8s-9)=0

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Solution for (4s+5)(3s+8s-9)=0 equation:


Simplifying
(4s + 5)(3s + 8s + -9) = 0

Reorder the terms:
(5 + 4s)(3s + 8s + -9) = 0

Reorder the terms:
(5 + 4s)(-9 + 3s + 8s) = 0

Combine like terms: 3s + 8s = 11s
(5 + 4s)(-9 + 11s) = 0

Multiply (5 + 4s) * (-9 + 11s)
(5(-9 + 11s) + 4s * (-9 + 11s)) = 0
((-9 * 5 + 11s * 5) + 4s * (-9 + 11s)) = 0
((-45 + 55s) + 4s * (-9 + 11s)) = 0
(-45 + 55s + (-9 * 4s + 11s * 4s)) = 0
(-45 + 55s + (-36s + 44s2)) = 0

Combine like terms: 55s + -36s = 19s
(-45 + 19s + 44s2) = 0

Solving
-45 + 19s + 44s2 = 0

Solving for variable 's'.

Factor a trinomial.
(-5 + -4s)(9 + -11s) = 0

Subproblem 1

Set the factor '(-5 + -4s)' equal to zero and attempt to solve: Simplifying -5 + -4s = 0 Solving -5 + -4s = 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 + -4s = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -4s = 0 + 5 -4s = 0 + 5 Combine like terms: 0 + 5 = 5 -4s = 5 Divide each side by '-4'. s = -1.25 Simplifying s = -1.25

Subproblem 2

Set the factor '(9 + -11s)' equal to zero and attempt to solve: Simplifying 9 + -11s = 0 Solving 9 + -11s = 0 Move all terms containing s to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -11s = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -11s = 0 + -9 -11s = 0 + -9 Combine like terms: 0 + -9 = -9 -11s = -9 Divide each side by '-11'. s = 0.8181818182 Simplifying s = 0.8181818182

Solution

s = {-1.25, 0.8181818182}

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