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Simplifying 4x2 + -76 = 5x2 + 23x Reorder the terms: -76 + 4x2 = 5x2 + 23x Reorder the terms: -76 + 4x2 = 23x + 5x2 Solving -76 + 4x2 = 23x + 5x2 Solving for variable 'x'. Reorder the terms: -76 + -23x + 4x2 + -5x2 = 23x + 5x2 + -23x + -5x2 Combine like terms: 4x2 + -5x2 = -1x2 -76 + -23x + -1x2 = 23x + 5x2 + -23x + -5x2 Reorder the terms: -76 + -23x + -1x2 = 23x + -23x + 5x2 + -5x2 Combine like terms: 23x + -23x = 0 -76 + -23x + -1x2 = 0 + 5x2 + -5x2 -76 + -23x + -1x2 = 5x2 + -5x2 Combine like terms: 5x2 + -5x2 = 0 -76 + -23x + -1x2 = 0 Factor out the Greatest Common Factor (GCF), '-1'. -1(76 + 23x + x2) = 0 Factor a trinomial. -1((19 + x)(4 + x)) = 0 Ignore the factor -1.Subproblem 1
Set the factor '(19 + x)' equal to zero and attempt to solve: Simplifying 19 + x = 0 Solving 19 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + x = 0 + -19 Combine like terms: 19 + -19 = 0 0 + x = 0 + -19 x = 0 + -19 Combine like terms: 0 + -19 = -19 x = -19 Simplifying x = -19Subproblem 2
Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 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 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4Solution
x = {-19, -4}
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