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Simplifying 5n(3n + -4) + -2(4 + -3n) = 0 Reorder the terms: 5n(-4 + 3n) + -2(4 + -3n) = 0 (-4 * 5n + 3n * 5n) + -2(4 + -3n) = 0 (-20n + 15n2) + -2(4 + -3n) = 0 -20n + 15n2 + (4 * -2 + -3n * -2) = 0 -20n + 15n2 + (-8 + 6n) = 0 Reorder the terms: -8 + -20n + 6n + 15n2 = 0 Combine like terms: -20n + 6n = -14n -8 + -14n + 15n2 = 0 Solving -8 + -14n + 15n2 = 0 Solving for variable 'n'. Factor a trinomial. (-2 + -5n)(4 + -3n) = 0Subproblem 1
Set the factor '(-2 + -5n)' equal to zero and attempt to solve: Simplifying -2 + -5n = 0 Solving -2 + -5n = 0 Move all terms containing n to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -5n = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -5n = 0 + 2 -5n = 0 + 2 Combine like terms: 0 + 2 = 2 -5n = 2 Divide each side by '-5'. n = -0.4 Simplifying n = -0.4Subproblem 2
Set the factor '(4 + -3n)' equal to zero and attempt to solve: Simplifying 4 + -3n = 0 Solving 4 + -3n = 0 Move all terms containing n to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -3n = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3n = 0 + -4 -3n = 0 + -4 Combine like terms: 0 + -4 = -4 -3n = -4 Divide each side by '-3'. n = 1.333333333 Simplifying n = 1.333333333Solution
n = {-0.4, 1.333333333}
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