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Simplifying 2x2 + 5x + 4 = x + 4 Reorder the terms: 4 + 5x + 2x2 = x + 4 Reorder the terms: 4 + 5x + 2x2 = 4 + x Add '-4' to each side of the equation. 4 + 5x + -4 + 2x2 = 4 + -4 + x Reorder the terms: 4 + -4 + 5x + 2x2 = 4 + -4 + x Combine like terms: 4 + -4 = 0 0 + 5x + 2x2 = 4 + -4 + x 5x + 2x2 = 4 + -4 + x Combine like terms: 4 + -4 = 0 5x + 2x2 = 0 + x 5x + 2x2 = x Solving 5x + 2x2 = x Solving for variable 'x'. Reorder the terms: 5x + -1x + 2x2 = x + -1x Combine like terms: 5x + -1x = 4x 4x + 2x2 = x + -1x Combine like terms: x + -1x = 0 4x + 2x2 = 0 Factor out the Greatest Common Factor (GCF), '2x'. 2x(2 + x) = 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 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 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 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2Solution
x = {0, -2}
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