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Simplifying 4s2 + 15s + -4 = 0 Reorder the terms: -4 + 15s + 4s2 = 0 Solving -4 + 15s + 4s2 = 0 Solving for variable 's'. Factor a trinomial. (-4 + -1s)(1 + -4s) = 0Subproblem 1
Set the factor '(-4 + -1s)' equal to zero and attempt to solve: Simplifying -4 + -1s = 0 Solving -4 + -1s = 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 + -1s = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1s = 0 + 4 -1s = 0 + 4 Combine like terms: 0 + 4 = 4 -1s = 4 Divide each side by '-1'. s = -4 Simplifying s = -4Subproblem 2
Set the factor '(1 + -4s)' equal to zero and attempt to solve: Simplifying 1 + -4s = 0 Solving 1 + -4s = 0 Move all terms containing s to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -4s = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -4s = 0 + -1 -4s = 0 + -1 Combine like terms: 0 + -1 = -1 -4s = -1 Divide each side by '-4'. s = 0.25 Simplifying s = 0.25Solution
s = {-4, 0.25}
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