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Simplifying -4d2 + 3d = 2 Reorder the terms: 3d + -4d2 = 2 Solving 3d + -4d2 = 2 Solving for variable 'd'. Reorder the terms: -2 + 3d + -4d2 = 2 + -2 Combine like terms: 2 + -2 = 0 -2 + 3d + -4d2 = 0 Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. 0.5 + -0.75d + d2 = 0 Move the constant term to the right: Add '-0.5' to each side of the equation. 0.5 + -0.75d + -0.5 + d2 = 0 + -0.5 Reorder the terms: 0.5 + -0.5 + -0.75d + d2 = 0 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + -0.75d + d2 = 0 + -0.5 -0.75d + d2 = 0 + -0.5 Combine like terms: 0 + -0.5 = -0.5 -0.75d + d2 = -0.5 The d term is -0.75d. Take half its coefficient (-0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. -0.75d + 0.140625 + d2 = -0.5 + 0.140625 Reorder the terms: 0.140625 + -0.75d + d2 = -0.5 + 0.140625 Combine like terms: -0.5 + 0.140625 = -0.359375 0.140625 + -0.75d + d2 = -0.359375 Factor a perfect square on the left side: (d + -0.375)(d + -0.375) = -0.359375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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