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Simplifying x2 + -4 = 3x2 + -4x + -4 Reorder the terms: -4 + x2 = 3x2 + -4x + -4 Reorder the terms: -4 + x2 = -4 + -4x + 3x2 Add '4' to each side of the equation. -4 + 4 + x2 = -4 + -4x + 4 + 3x2 Combine like terms: -4 + 4 = 0 0 + x2 = -4 + -4x + 4 + 3x2 x2 = -4 + -4x + 4 + 3x2 Reorder the terms: x2 = -4 + 4 + -4x + 3x2 Combine like terms: -4 + 4 = 0 x2 = 0 + -4x + 3x2 x2 = -4x + 3x2 Solving x2 = -4x + 3x2 Solving for variable 'x'. Reorder the terms: 4x + x2 + -3x2 = -4x + 3x2 + 4x + -3x2 Combine like terms: x2 + -3x2 = -2x2 4x + -2x2 = -4x + 3x2 + 4x + -3x2 Reorder the terms: 4x + -2x2 = -4x + 4x + 3x2 + -3x2 Combine like terms: -4x + 4x = 0 4x + -2x2 = 0 + 3x2 + -3x2 4x + -2x2 = 3x2 + -3x2 Combine like terms: 3x2 + -3x2 = 0 4x + -2x2 = 0 Factor out the Greatest Common Factor (GCF), '2x'. 2x(2 + -1x) = 0 Ignore the factor 2.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 '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2Solution
x = {0, 2}
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