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Simplifying 4x3 + 9x2 + 30x = 0 Reorder the terms: 30x + 9x2 + 4x3 = 0 Solving 30x + 9x2 + 4x3 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), 'x'. x(30 + 9x + 4x2) = 0Subproblem 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 '(30 + 9x + 4x2)' equal to zero and attempt to solve: Simplifying 30 + 9x + 4x2 = 0 Solving 30 + 9x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 7.5 + 2.25x + x2 = 0 Move the constant term to the right: Add '-7.5' to each side of the equation. 7.5 + 2.25x + -7.5 + x2 = 0 + -7.5 Reorder the terms: 7.5 + -7.5 + 2.25x + x2 = 0 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + 2.25x + x2 = 0 + -7.5 2.25x + x2 = 0 + -7.5 Combine like terms: 0 + -7.5 = -7.5 2.25x + x2 = -7.5 The x term is 2.25x. Take half its coefficient (1.125). Square it (1.265625) and add it to both sides. Add '1.265625' to each side of the equation. 2.25x + 1.265625 + x2 = -7.5 + 1.265625 Reorder the terms: 1.265625 + 2.25x + x2 = -7.5 + 1.265625 Combine like terms: -7.5 + 1.265625 = -6.234375 1.265625 + 2.25x + x2 = -6.234375 Factor a perfect square on the left side: (x + 1.125)(x + 1.125) = -6.234375 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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