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Simplifying (7x + -1)(3x + 4) = 0 Reorder the terms: (-1 + 7x)(3x + 4) = 0 Reorder the terms: (-1 + 7x)(4 + 3x) = 0 Multiply (-1 + 7x) * (4 + 3x) (-1(4 + 3x) + 7x * (4 + 3x)) = 0 ((4 * -1 + 3x * -1) + 7x * (4 + 3x)) = 0 ((-4 + -3x) + 7x * (4 + 3x)) = 0 (-4 + -3x + (4 * 7x + 3x * 7x)) = 0 (-4 + -3x + (28x + 21x2)) = 0 Combine like terms: -3x + 28x = 25x (-4 + 25x + 21x2) = 0 Solving -4 + 25x + 21x2 = 0 Solving for variable 'x'. Factor a trinomial. (-4 + -3x)(1 + -7x) = 0Subproblem 1
Set the factor '(-4 + -3x)' equal to zero and attempt to solve: Simplifying -4 + -3x = 0 Solving -4 + -3x = 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 + -3x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -3x = 0 + 4 -3x = 0 + 4 Combine like terms: 0 + 4 = 4 -3x = 4 Divide each side by '-3'. x = -1.333333333 Simplifying x = -1.333333333Subproblem 2
Set the factor '(1 + -7x)' equal to zero and attempt to solve: Simplifying 1 + -7x = 0 Solving 1 + -7x = 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 + -7x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -7x = 0 + -1 -7x = 0 + -1 Combine like terms: 0 + -1 = -1 -7x = -1 Divide each side by '-7'. x = 0.1428571429 Simplifying x = 0.1428571429Solution
x = {-1.333333333, 0.1428571429}
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