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Simplifying 3x4 + -15x3 + 39x2 = 0 Reorder the terms: 39x2 + -15x3 + 3x4 = 0 Solving 39x2 + -15x3 + 3x4 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3x2'. 3x2(13 + -5x + x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}Subproblem 2
Set the factor '(13 + -5x + x2)' equal to zero and attempt to solve: Simplifying 13 + -5x + x2 = 0 Solving 13 + -5x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-13' to each side of the equation. 13 + -5x + -13 + x2 = 0 + -13 Reorder the terms: 13 + -13 + -5x + x2 = 0 + -13 Combine like terms: 13 + -13 = 0 0 + -5x + x2 = 0 + -13 -5x + x2 = 0 + -13 Combine like terms: 0 + -13 = -13 -5x + x2 = -13 The x term is -5x. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5x + 6.25 + x2 = -13 + 6.25 Reorder the terms: 6.25 + -5x + x2 = -13 + 6.25 Combine like terms: -13 + 6.25 = -6.75 6.25 + -5x + x2 = -6.75 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = -6.75 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.Solution
x = {0}
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