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Simplifying x(2x + 4.5) = 2(2x + -1) + 4x Reorder the terms: x(4.5 + 2x) = 2(2x + -1) + 4x (4.5 * x + 2x * x) = 2(2x + -1) + 4x (4.5x + 2x2) = 2(2x + -1) + 4x Reorder the terms: 4.5x + 2x2 = 2(-1 + 2x) + 4x 4.5x + 2x2 = (-1 * 2 + 2x * 2) + 4x 4.5x + 2x2 = (-2 + 4x) + 4x Combine like terms: 4x + 4x = 8x 4.5x + 2x2 = -2 + 8x Solving 4.5x + 2x2 = -2 + 8x Solving for variable 'x'. Reorder the terms: 2 + 4.5x + -8x + 2x2 = -2 + 8x + 2 + -8x Combine like terms: 4.5x + -8x = -3.5x 2 + -3.5x + 2x2 = -2 + 8x + 2 + -8x Reorder the terms: 2 + -3.5x + 2x2 = -2 + 2 + 8x + -8x Combine like terms: -2 + 2 = 0 2 + -3.5x + 2x2 = 0 + 8x + -8x 2 + -3.5x + 2x2 = 8x + -8x Combine like terms: 8x + -8x = 0 2 + -3.5x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 1 + -1.75x + x2 = 0 Move the constant term to the right: Add '-1' to each side of the equation. 1 + -1.75x + -1 + x2 = 0 + -1 Reorder the terms: 1 + -1 + -1.75x + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1.75x + x2 = 0 + -1 -1.75x + x2 = 0 + -1 Combine like terms: 0 + -1 = -1 -1.75x + x2 = -1 The x term is -1.75x. Take half its coefficient (-0.875). Square it (0.765625) and add it to both sides. Add '0.765625' to each side of the equation. -1.75x + 0.765625 + x2 = -1 + 0.765625 Reorder the terms: 0.765625 + -1.75x + x2 = -1 + 0.765625 Combine like terms: -1 + 0.765625 = -0.234375 0.765625 + -1.75x + x2 = -0.234375 Factor a perfect square on the left side: (x + -0.875)(x + -0.875) = -0.234375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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