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Simplifying 20x2 = x + 1 Reorder the terms: 20x2 = 1 + x Solving 20x2 = 1 + x Solving for variable 'x'. Reorder the terms: -1 + -1x + 20x2 = 1 + x + -1 + -1x Reorder the terms: -1 + -1x + 20x2 = 1 + -1 + x + -1x Combine like terms: 1 + -1 = 0 -1 + -1x + 20x2 = 0 + x + -1x -1 + -1x + 20x2 = x + -1x Combine like terms: x + -1x = 0 -1 + -1x + 20x2 = 0 Factor a trinomial. (-1 + -5x)(1 + -4x) = 0Subproblem 1
Set the factor '(-1 + -5x)' equal to zero and attempt to solve: Simplifying -1 + -5x = 0 Solving -1 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -5x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -5x = 0 + 1 -5x = 0 + 1 Combine like terms: 0 + 1 = 1 -5x = 1 Divide each side by '-5'. x = -0.2 Simplifying x = -0.2Subproblem 2
Set the factor '(1 + -4x)' equal to zero and attempt to solve: Simplifying 1 + -4x = 0 Solving 1 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -4x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -4x = 0 + -1 -4x = 0 + -1 Combine like terms: 0 + -1 = -1 -4x = -1 Divide each side by '-4'. x = 0.25 Simplifying x = 0.25Solution
x = {-0.2, 0.25}
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