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Simplifying x2 + -4 = 4x2 + -12x + -4 Reorder the terms: -4 + x2 = 4x2 + -12x + -4 Reorder the terms: -4 + x2 = -4 + -12x + 4x2 Add '4' to each side of the equation. -4 + 4 + x2 = -4 + -12x + 4 + 4x2 Combine like terms: -4 + 4 = 0 0 + x2 = -4 + -12x + 4 + 4x2 x2 = -4 + -12x + 4 + 4x2 Reorder the terms: x2 = -4 + 4 + -12x + 4x2 Combine like terms: -4 + 4 = 0 x2 = 0 + -12x + 4x2 x2 = -12x + 4x2 Solving x2 = -12x + 4x2 Solving for variable 'x'. Reorder the terms: 12x + x2 + -4x2 = -12x + 4x2 + 12x + -4x2 Combine like terms: x2 + -4x2 = -3x2 12x + -3x2 = -12x + 4x2 + 12x + -4x2 Reorder the terms: 12x + -3x2 = -12x + 12x + 4x2 + -4x2 Combine like terms: -12x + 12x = 0 12x + -3x2 = 0 + 4x2 + -4x2 12x + -3x2 = 4x2 + -4x2 Combine like terms: 4x2 + -4x2 = 0 12x + -3x2 = 0 Factor out the Greatest Common Factor (GCF), '3x'. 3x(4 + -1x) = 0 Ignore the factor 3.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 '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4Solution
x = {0, 4}
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