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Simplifying 4x2 + -21x + 38 = 4x + 2 Reorder the terms: 38 + -21x + 4x2 = 4x + 2 Reorder the terms: 38 + -21x + 4x2 = 2 + 4x Solving 38 + -21x + 4x2 = 2 + 4x Solving for variable 'x'. Reorder the terms: 38 + -2 + -21x + -4x + 4x2 = 2 + 4x + -2 + -4x Combine like terms: 38 + -2 = 36 36 + -21x + -4x + 4x2 = 2 + 4x + -2 + -4x Combine like terms: -21x + -4x = -25x 36 + -25x + 4x2 = 2 + 4x + -2 + -4x Reorder the terms: 36 + -25x + 4x2 = 2 + -2 + 4x + -4x Combine like terms: 2 + -2 = 0 36 + -25x + 4x2 = 0 + 4x + -4x 36 + -25x + 4x2 = 4x + -4x Combine like terms: 4x + -4x = 0 36 + -25x + 4x2 = 0 Factor a trinomial. (9 + -4x)(4 + -1x) = 0Subproblem 1
Set the factor '(9 + -4x)' equal to zero and attempt to solve: Simplifying 9 + -4x = 0 Solving 9 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -4x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -4x = 0 + -9 -4x = 0 + -9 Combine like terms: 0 + -9 = -9 -4x = -9 Divide each side by '-4'. x = 2.25 Simplifying x = 2.25Subproblem 2
Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 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 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4Solution
x = {2.25, 4}
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