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Simplifying 6x2 + 8x + -20 = 4x2 + 14x + 16 Reorder the terms: -20 + 8x + 6x2 = 4x2 + 14x + 16 Reorder the terms: -20 + 8x + 6x2 = 16 + 14x + 4x2 Solving -20 + 8x + 6x2 = 16 + 14x + 4x2 Solving for variable 'x'. Reorder the terms: -20 + -16 + 8x + -14x + 6x2 + -4x2 = 16 + 14x + 4x2 + -16 + -14x + -4x2 Combine like terms: -20 + -16 = -36 -36 + 8x + -14x + 6x2 + -4x2 = 16 + 14x + 4x2 + -16 + -14x + -4x2 Combine like terms: 8x + -14x = -6x -36 + -6x + 6x2 + -4x2 = 16 + 14x + 4x2 + -16 + -14x + -4x2 Combine like terms: 6x2 + -4x2 = 2x2 -36 + -6x + 2x2 = 16 + 14x + 4x2 + -16 + -14x + -4x2 Reorder the terms: -36 + -6x + 2x2 = 16 + -16 + 14x + -14x + 4x2 + -4x2 Combine like terms: 16 + -16 = 0 -36 + -6x + 2x2 = 0 + 14x + -14x + 4x2 + -4x2 -36 + -6x + 2x2 = 14x + -14x + 4x2 + -4x2 Combine like terms: 14x + -14x = 0 -36 + -6x + 2x2 = 0 + 4x2 + -4x2 -36 + -6x + 2x2 = 4x2 + -4x2 Combine like terms: 4x2 + -4x2 = 0 -36 + -6x + 2x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-18 + -3x + x2) = 0 Factor a trinomial. 2((-3 + -1x)(6 + -1x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 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 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3Subproblem 2
Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6Solution
x = {-3, 6}
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