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Simplifying 4s + -1s(s + 4) = 2(2s + 3) + 9 Reorder the terms: 4s + -1s(4 + s) = 2(2s + 3) + 9 4s + (4 * -1s + s * -1s) = 2(2s + 3) + 9 4s + (-4s + -1s2) = 2(2s + 3) + 9 Combine like terms: 4s + -4s = 0 0 + -1s2 = 2(2s + 3) + 9 -1s2 = 2(2s + 3) + 9 Reorder the terms: -1s2 = 2(3 + 2s) + 9 -1s2 = (3 * 2 + 2s * 2) + 9 -1s2 = (6 + 4s) + 9 Reorder the terms: -1s2 = 6 + 9 + 4s Combine like terms: 6 + 9 = 15 -1s2 = 15 + 4s Solving -1s2 = 15 + 4s Solving for variable 's'. Reorder the terms: -15 + -4s + -1s2 = 15 + 4s + -15 + -4s Reorder the terms: -15 + -4s + -1s2 = 15 + -15 + 4s + -4s Combine like terms: 15 + -15 = 0 -15 + -4s + -1s2 = 0 + 4s + -4s -15 + -4s + -1s2 = 4s + -4s Combine like terms: 4s + -4s = 0 -15 + -4s + -1s2 = 0 Factor out the Greatest Common Factor (GCF), '-1'. -1(15 + 4s + s2) = 0 Ignore the factor -1.Subproblem 1
Set the factor '(15 + 4s + s2)' equal to zero and attempt to solve: Simplifying 15 + 4s + s2 = 0 Solving 15 + 4s + s2 = 0 Begin completing the square. Move the constant term to the right: Add '-15' to each side of the equation. 15 + 4s + -15 + s2 = 0 + -15 Reorder the terms: 15 + -15 + 4s + s2 = 0 + -15 Combine like terms: 15 + -15 = 0 0 + 4s + s2 = 0 + -15 4s + s2 = 0 + -15 Combine like terms: 0 + -15 = -15 4s + s2 = -15 The s term is 4s. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4s + 4 + s2 = -15 + 4 Reorder the terms: 4 + 4s + s2 = -15 + 4 Combine like terms: -15 + 4 = -11 4 + 4s + s2 = -11 Factor a perfect square on the left side: (s + 2)(s + 2) = -11 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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