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Simplifying 21s2 + -52s + 7 = 0 Reorder the terms: 7 + -52s + 21s2 = 0 Solving 7 + -52s + 21s2 = 0 Solving for variable 's'. Factor a trinomial. (1 + -7s)(7 + -3s) = 0Subproblem 1
Set the factor '(1 + -7s)' equal to zero and attempt to solve: Simplifying 1 + -7s = 0 Solving 1 + -7s = 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 + -7s = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -7s = 0 + -1 -7s = 0 + -1 Combine like terms: 0 + -1 = -1 -7s = -1 Divide each side by '-7'. s = 0.1428571429 Simplifying s = 0.1428571429Subproblem 2
Set the factor '(7 + -3s)' equal to zero and attempt to solve: Simplifying 7 + -3s = 0 Solving 7 + -3s = 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 + -3s = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -3s = 0 + -7 -3s = 0 + -7 Combine like terms: 0 + -7 = -7 -3s = -7 Divide each side by '-3'. s = 2.333333333 Simplifying s = 2.333333333Solution
s = {0.1428571429, 2.333333333}
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