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Simplifying 4(x + -2)[x] * 2 + -1x(4x + -13) = -5 Reorder the terms: 4(-2 + x)[x] * 2 + -1x(4x + -13) = -5 Reorder the terms for easier multiplication: 4 * 2x(-2 + x) + -1x(4x + -13) = -5 Multiply 4 * 2 8x(-2 + x) + -1x(4x + -13) = -5 (-2 * 8x + x * 8x) + -1x(4x + -13) = -5 (-16x + 8x2) + -1x(4x + -13) = -5 Reorder the terms: -16x + 8x2 + -1x(-13 + 4x) = -5 -16x + 8x2 + (-13 * -1x + 4x * -1x) = -5 -16x + 8x2 + (13x + -4x2) = -5 Reorder the terms: -16x + 13x + 8x2 + -4x2 = -5 Combine like terms: -16x + 13x = -3x -3x + 8x2 + -4x2 = -5 Combine like terms: 8x2 + -4x2 = 4x2 -3x + 4x2 = -5 Solving -3x + 4x2 = -5 Solving for variable 'x'. Reorder the terms: 5 + -3x + 4x2 = -5 + 5 Combine like terms: -5 + 5 = 0 5 + -3x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 1.25 + -0.75x + x2 = 0 Move the constant term to the right: Add '-1.25' to each side of the equation. 1.25 + -0.75x + -1.25 + x2 = 0 + -1.25 Reorder the terms: 1.25 + -1.25 + -0.75x + x2 = 0 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + -0.75x + x2 = 0 + -1.25 -0.75x + x2 = 0 + -1.25 Combine like terms: 0 + -1.25 = -1.25 -0.75x + x2 = -1.25 The x term is -0.75x. 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. -0.75x + 0.140625 + x2 = -1.25 + 0.140625 Reorder the terms: 0.140625 + -0.75x + x2 = -1.25 + 0.140625 Combine like terms: -1.25 + 0.140625 = -1.109375 0.140625 + -0.75x + x2 = -1.109375 Factor a perfect square on the left side: (x + -0.375)(x + -0.375) = -1.109375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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