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Simplifying s2 + -7s = -16 Reorder the terms: -7s + s2 = -16 Solving -7s + s2 = -16 Solving for variable 's'. Reorder the terms: 16 + -7s + s2 = -16 + 16 Combine like terms: -16 + 16 = 0 16 + -7s + s2 = 0 Begin completing the square. Move the constant term to the right: Add '-16' to each side of the equation. 16 + -7s + -16 + s2 = 0 + -16 Reorder the terms: 16 + -16 + -7s + s2 = 0 + -16 Combine like terms: 16 + -16 = 0 0 + -7s + s2 = 0 + -16 -7s + s2 = 0 + -16 Combine like terms: 0 + -16 = -16 -7s + s2 = -16 The s term is -7s. Take half its coefficient (-3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. -7s + 12.25 + s2 = -16 + 12.25 Reorder the terms: 12.25 + -7s + s2 = -16 + 12.25 Combine like terms: -16 + 12.25 = -3.75 12.25 + -7s + s2 = -3.75 Factor a perfect square on the left side: (s + -3.5)(s + -3.5) = -3.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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