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Simplifying 2w2 + -7w + 27 = w + -5w + -5 Reorder the terms: 27 + -7w + 2w2 = w + -5w + -5 Reorder the terms: 27 + -7w + 2w2 = -5 + w + -5w Combine like terms: w + -5w = -4w 27 + -7w + 2w2 = -5 + -4w Solving 27 + -7w + 2w2 = -5 + -4w Solving for variable 'w'. Reorder the terms: 27 + 5 + -7w + 4w + 2w2 = -5 + -4w + 5 + 4w Combine like terms: 27 + 5 = 32 32 + -7w + 4w + 2w2 = -5 + -4w + 5 + 4w Combine like terms: -7w + 4w = -3w 32 + -3w + 2w2 = -5 + -4w + 5 + 4w Reorder the terms: 32 + -3w + 2w2 = -5 + 5 + -4w + 4w Combine like terms: -5 + 5 = 0 32 + -3w + 2w2 = 0 + -4w + 4w 32 + -3w + 2w2 = -4w + 4w Combine like terms: -4w + 4w = 0 32 + -3w + 2w2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 16 + -1.5w + w2 = 0 Move the constant term to the right: Add '-16' to each side of the equation. 16 + -1.5w + -16 + w2 = 0 + -16 Reorder the terms: 16 + -16 + -1.5w + w2 = 0 + -16 Combine like terms: 16 + -16 = 0 0 + -1.5w + w2 = 0 + -16 -1.5w + w2 = 0 + -16 Combine like terms: 0 + -16 = -16 -1.5w + w2 = -16 The w term is -1.5w. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5w + 0.5625 + w2 = -16 + 0.5625 Reorder the terms: 0.5625 + -1.5w + w2 = -16 + 0.5625 Combine like terms: -16 + 0.5625 = -15.4375 0.5625 + -1.5w + w2 = -15.4375 Factor a perfect square on the left side: (w + -0.75)(w + -0.75) = -15.4375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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