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Simplifying 4y2 + -1y + 8 = 0 Reorder the terms: 8 + -1y + 4y2 = 0 Solving 8 + -1y + 4y2 = 0 Solving for variable 'y'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 2 + -0.25y + y2 = 0 Move the constant term to the right: Add '-2' to each side of the equation. 2 + -0.25y + -2 + y2 = 0 + -2 Reorder the terms: 2 + -2 + -0.25y + y2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -0.25y + y2 = 0 + -2 -0.25y + y2 = 0 + -2 Combine like terms: 0 + -2 = -2 -0.25y + y2 = -2 The y term is -0.25y. Take half its coefficient (-0.125). Square it (0.015625) and add it to both sides. Add '0.015625' to each side of the equation. -0.25y + 0.015625 + y2 = -2 + 0.015625 Reorder the terms: 0.015625 + -0.25y + y2 = -2 + 0.015625 Combine like terms: -2 + 0.015625 = -1.984375 0.015625 + -0.25y + y2 = -1.984375 Factor a perfect square on the left side: (y + -0.125)(y + -0.125) = -1.984375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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