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Simplifying -36s2 + 39s + 42 = 0 Reorder the terms: 42 + 39s + -36s2 = 0 Solving 42 + 39s + -36s2 = 0 Solving for variable 's'. Factor out the Greatest Common Factor (GCF), '3'. 3(14 + 13s + -12s2) = 0 Factor a trinomial. 3((7 + -4s)(2 + 3s)) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(7 + -4s)' equal to zero and attempt to solve: Simplifying 7 + -4s = 0 Solving 7 + -4s = 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 + -4s = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -4s = 0 + -7 -4s = 0 + -7 Combine like terms: 0 + -7 = -7 -4s = -7 Divide each side by '-4'. s = 1.75 Simplifying s = 1.75Subproblem 2
Set the factor '(2 + 3s)' equal to zero and attempt to solve: Simplifying 2 + 3s = 0 Solving 2 + 3s = 0 Move all terms containing s to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 3s = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 3s = 0 + -2 3s = 0 + -2 Combine like terms: 0 + -2 = -2 3s = -2 Divide each side by '3'. s = -0.6666666667 Simplifying s = -0.6666666667Solution
s = {1.75, -0.6666666667}
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