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Simplifying 5x2 + 4x + -1 = 56 Reorder the terms: -1 + 4x + 5x2 = 56 Solving -1 + 4x + 5x2 = 56 Solving for variable 'x'. Reorder the terms: -1 + -56 + 4x + 5x2 = 56 + -56 Combine like terms: -1 + -56 = -57 -57 + 4x + 5x2 = 56 + -56 Combine like terms: 56 + -56 = 0 -57 + 4x + 5x2 = 0 Factor a trinomial. (-19 + -5x)(3 + -1x) = 0Subproblem 1
Set the factor '(-19 + -5x)' equal to zero and attempt to solve: Simplifying -19 + -5x = 0 Solving -19 + -5x = 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 + -5x = 0 + 19 Combine like terms: -19 + 19 = 0 0 + -5x = 0 + 19 -5x = 0 + 19 Combine like terms: 0 + 19 = 19 -5x = 19 Divide each side by '-5'. x = -3.8 Simplifying x = -3.8Subproblem 2
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 = 3Solution
x = {-3.8, 3}
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