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Simplifying 405 + -108x + 12x2 = 0 Solving 405 + -108x + 12x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3'. 3(135 + -36x + 4x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(135 + -36x + 4x2)' equal to zero and attempt to solve: Simplifying 135 + -36x + 4x2 = 0 Solving 135 + -36x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 33.75 + -9x + x2 = 0 Move the constant term to the right: Add '-33.75' to each side of the equation. 33.75 + -9x + -33.75 + x2 = 0 + -33.75 Reorder the terms: 33.75 + -33.75 + -9x + x2 = 0 + -33.75 Combine like terms: 33.75 + -33.75 = 0.00 0.00 + -9x + x2 = 0 + -33.75 -9x + x2 = 0 + -33.75 Combine like terms: 0 + -33.75 = -33.75 -9x + x2 = -33.75 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 = -33.75 + 20.25 Reorder the terms: 20.25 + -9x + x2 = -33.75 + 20.25 Combine like terms: -33.75 + 20.25 = -13.5 20.25 + -9x + x2 = -13.5 Factor a perfect square on the left side: (x + -4.5)(x + -4.5) = -13.5 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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