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Simplifying 105 = x(2x + -3)(3) Reorder the terms: 105 = x(-3 + 2x)(3) Reorder the terms for easier multiplication: 105 = 3x(-3 + 2x) 105 = (-3 * 3x + 2x * 3x) 105 = (-9x + 6x2) Solving 105 = -9x + 6x2 Solving for variable 'x'. Reorder the terms: 105 + 9x + -6x2 = -9x + 9x + 6x2 + -6x2 Combine like terms: -9x + 9x = 0 105 + 9x + -6x2 = 0 + 6x2 + -6x2 105 + 9x + -6x2 = 6x2 + -6x2 Combine like terms: 6x2 + -6x2 = 0 105 + 9x + -6x2 = 0 Factor out the Greatest Common Factor (GCF), '3'. 3(35 + 3x + -2x2) = 0 Factor a trinomial. 3((5 + -1x)(7 + 2x)) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5Subproblem 2
Set the factor '(7 + 2x)' equal to zero and attempt to solve: Simplifying 7 + 2x = 0 Solving 7 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 2x = 0 + -7 2x = 0 + -7 Combine like terms: 0 + -7 = -7 2x = -7 Divide each side by '2'. x = -3.5 Simplifying x = -3.5Solution
x = {5, -3.5}
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