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Simplifying 8n2 + -17n + -21 = 0 Reorder the terms: -21 + -17n + 8n2 = 0 Solving -21 + -17n + 8n2 = 0 Solving for variable 'n'. Factor a trinomial. (-7 + -8n)(3 + -1n) = 0Subproblem 1
Set the factor '(-7 + -8n)' equal to zero and attempt to solve: Simplifying -7 + -8n = 0 Solving -7 + -8n = 0 Move all terms containing n to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -8n = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -8n = 0 + 7 -8n = 0 + 7 Combine like terms: 0 + 7 = 7 -8n = 7 Divide each side by '-8'. n = -0.875 Simplifying n = -0.875Subproblem 2
Set the factor '(3 + -1n)' equal to zero and attempt to solve: Simplifying 3 + -1n = 0 Solving 3 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1n = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1n = 0 + -3 -1n = 0 + -3 Combine like terms: 0 + -3 = -3 -1n = -3 Divide each side by '-1'. n = 3 Simplifying n = 3Solution
n = {-0.875, 3}
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