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Simplifying -1x2 + -9x + 3x + -27 = 0 Reorder the terms: -27 + -9x + 3x + -1x2 = 0 Combine like terms: -9x + 3x = -6x -27 + -6x + -1x2 = 0 Solving -27 + -6x + -1x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '-1'. -1(27 + 6x + x2) = 0 Ignore the factor -1.Subproblem 1
Set the factor '(27 + 6x + x2)' equal to zero and attempt to solve: Simplifying 27 + 6x + x2 = 0 Solving 27 + 6x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-27' to each side of the equation. 27 + 6x + -27 + x2 = 0 + -27 Reorder the terms: 27 + -27 + 6x + x2 = 0 + -27 Combine like terms: 27 + -27 = 0 0 + 6x + x2 = 0 + -27 6x + x2 = 0 + -27 Combine like terms: 0 + -27 = -27 6x + x2 = -27 The x term is 6x. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6x + 9 + x2 = -27 + 9 Reorder the terms: 9 + 6x + x2 = -27 + 9 Combine like terms: -27 + 9 = -18 9 + 6x + x2 = -18 Factor a perfect square on the left side: (x + 3)(x + 3) = -18 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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