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Simplifying (3x + -13)(x + 1) = 0 Reorder the terms: (-13 + 3x)(x + 1) = 0 Reorder the terms: (-13 + 3x)(1 + x) = 0 Multiply (-13 + 3x) * (1 + x) (-13(1 + x) + 3x * (1 + x)) = 0 ((1 * -13 + x * -13) + 3x * (1 + x)) = 0 ((-13 + -13x) + 3x * (1 + x)) = 0 (-13 + -13x + (1 * 3x + x * 3x)) = 0 (-13 + -13x + (3x + 3x2)) = 0 Combine like terms: -13x + 3x = -10x (-13 + -10x + 3x2) = 0 Solving -13 + -10x + 3x2 = 0 Solving for variable 'x'. Factor a trinomial. (-1 + -1x)(13 + -3x) = 0Subproblem 1
Set the factor '(-1 + -1x)' equal to zero and attempt to solve: Simplifying -1 + -1x = 0 Solving -1 + -1x = 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 + -1x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1x = 0 + 1 -1x = 0 + 1 Combine like terms: 0 + 1 = 1 -1x = 1 Divide each side by '-1'. x = -1 Simplifying x = -1Subproblem 2
Set the factor '(13 + -3x)' equal to zero and attempt to solve: Simplifying 13 + -3x = 0 Solving 13 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + -3x = 0 + -13 Combine like terms: 13 + -13 = 0 0 + -3x = 0 + -13 -3x = 0 + -13 Combine like terms: 0 + -13 = -13 -3x = -13 Divide each side by '-3'. x = 4.333333333 Simplifying x = 4.333333333Solution
x = {-1, 4.333333333}
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