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Simplifying 2x3 + 5x2 + 8x = 0 Reorder the terms: 8x + 5x2 + 2x3 = 0 Solving 8x + 5x2 + 2x3 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), 'x'. x(8 + 5x + 2x2) = 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 '(8 + 5x + 2x2)' equal to zero and attempt to solve: Simplifying 8 + 5x + 2x2 = 0 Solving 8 + 5x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 4 + 2.5x + x2 = 0 Move the constant term to the right: Add '-4' to each side of the equation. 4 + 2.5x + -4 + x2 = 0 + -4 Reorder the terms: 4 + -4 + 2.5x + x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 2.5x + x2 = 0 + -4 2.5x + x2 = 0 + -4 Combine like terms: 0 + -4 = -4 2.5x + x2 = -4 The x term is 2.5x. Take half its coefficient (1.25). Square it (1.5625) and add it to both sides. Add '1.5625' to each side of the equation. 2.5x + 1.5625 + x2 = -4 + 1.5625 Reorder the terms: 1.5625 + 2.5x + x2 = -4 + 1.5625 Combine like terms: -4 + 1.5625 = -2.4375 1.5625 + 2.5x + x2 = -2.4375 Factor a perfect square on the left side: (x + 1.25)(x + 1.25) = -2.4375 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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