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Simplifying -28x2 = 12x Solving -28x2 = 12x Solving for variable 'x'. Reorder the terms: -12x + -28x2 = 12x + -12x Combine like terms: 12x + -12x = 0 -12x + -28x2 = 0 Factor out the Greatest Common Factor (GCF), '-4x'. -4x(3 + 7x) = 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 '(3 + 7x)' equal to zero and attempt to solve: Simplifying 3 + 7x = 0 Solving 3 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 7x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 7x = 0 + -3 7x = 0 + -3 Combine like terms: 0 + -3 = -3 7x = -3 Divide each side by '7'. x = -0.4285714286 Simplifying x = -0.4285714286Solution
x = {0, -0.4285714286}
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