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Simplifying 5x2 + -1x = 42 Reorder the terms: -1x + 5x2 = 42 Solving -1x + 5x2 = 42 Solving for variable 'x'. Reorder the terms: -42 + -1x + 5x2 = 42 + -42 Combine like terms: 42 + -42 = 0 -42 + -1x + 5x2 = 0 Factor a trinomial. (-14 + -5x)(3 + -1x) = 0Subproblem 1
Set the factor '(-14 + -5x)' equal to zero and attempt to solve: Simplifying -14 + -5x = 0 Solving -14 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + -5x = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -5x = 0 + 14 -5x = 0 + 14 Combine like terms: 0 + 14 = 14 -5x = 14 Divide each side by '-5'. x = -2.8 Simplifying x = -2.8Subproblem 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 = {-2.8, 3}
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