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Simplifying 20x3 + -16x2 + 4x = 0 Reorder the terms: 4x + -16x2 + 20x3 = 0 Solving 4x + -16x2 + 20x3 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '4x'. 4x(1 + -4x + 5x2) = 0 Ignore the factor 4.Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(1 + -4x + 5x2)' equal to zero and attempt to solve: Simplifying 1 + -4x + 5x2 = 0 Solving 1 + -4x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 0.2 + -0.8x + x2 = 0 Move the constant term to the right: Add '-0.2' to each side of the equation. 0.2 + -0.8x + -0.2 + x2 = 0 + -0.2 Reorder the terms: 0.2 + -0.2 + -0.8x + x2 = 0 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + -0.8x + x2 = 0 + -0.2 -0.8x + x2 = 0 + -0.2 Combine like terms: 0 + -0.2 = -0.2 -0.8x + x2 = -0.2 The x term is -0.8x. Take half its coefficient (-0.4). Square it (0.16) and add it to both sides. Add '0.16' to each side of the equation. -0.8x + 0.16 + x2 = -0.2 + 0.16 Reorder the terms: 0.16 + -0.8x + x2 = -0.2 + 0.16 Combine like terms: -0.2 + 0.16 = -0.04 0.16 + -0.8x + x2 = -0.04 Factor a perfect square on the left side: (x + -0.4)(x + -0.4) = -0.04 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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