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Simplifying (x + -4)(9 + -1x) + (x + 6) = 5x Reorder the terms: (-4 + x)(9 + -1x) + (x + 6) = 5x Multiply (-4 + x) * (9 + -1x) (-4(9 + -1x) + x(9 + -1x)) + (x + 6) = 5x ((9 * -4 + -1x * -4) + x(9 + -1x)) + (x + 6) = 5x ((-36 + 4x) + x(9 + -1x)) + (x + 6) = 5x (-36 + 4x + (9 * x + -1x * x)) + (x + 6) = 5x (-36 + 4x + (9x + -1x2)) + (x + 6) = 5x Combine like terms: 4x + 9x = 13x (-36 + 13x + -1x2) + (x + 6) = 5x Reorder the terms: -36 + 13x + -1x2 + (6 + x) = 5x Remove parenthesis around (6 + x) -36 + 13x + -1x2 + 6 + x = 5x Reorder the terms: -36 + 6 + 13x + x + -1x2 = 5x Combine like terms: -36 + 6 = -30 -30 + 13x + x + -1x2 = 5x Combine like terms: 13x + x = 14x -30 + 14x + -1x2 = 5x Solving -30 + 14x + -1x2 = 5x Solving for variable 'x'. Reorder the terms: -30 + 14x + -5x + -1x2 = 5x + -5x Combine like terms: 14x + -5x = 9x -30 + 9x + -1x2 = 5x + -5x Combine like terms: 5x + -5x = 0 -30 + 9x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 30 + -9x + x2 = 0 Move the constant term to the right: Add '-30' to each side of the equation. 30 + -9x + -30 + x2 = 0 + -30 Reorder the terms: 30 + -30 + -9x + x2 = 0 + -30 Combine like terms: 30 + -30 = 0 0 + -9x + x2 = 0 + -30 -9x + x2 = 0 + -30 Combine like terms: 0 + -30 = -30 -9x + x2 = -30 The x term is -9x. Take half its coefficient (-4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. -9x + 20.25 + x2 = -30 + 20.25 Reorder the terms: 20.25 + -9x + x2 = -30 + 20.25 Combine like terms: -30 + 20.25 = -9.75 20.25 + -9x + x2 = -9.75 Factor a perfect square on the left side: (x + -4.5)(x + -4.5) = -9.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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