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Simplifying 9n2 + -2n + -7 = 0 Reorder the terms: -7 + -2n + 9n2 = 0 Solving -7 + -2n + 9n2 = 0 Solving for variable 'n'. Factor a trinomial. (-7 + -9n)(1 + -1n) = 0Subproblem 1
Set the factor '(-7 + -9n)' equal to zero and attempt to solve: Simplifying -7 + -9n = 0 Solving -7 + -9n = 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 + -9n = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -9n = 0 + 7 -9n = 0 + 7 Combine like terms: 0 + 7 = 7 -9n = 7 Divide each side by '-9'. n = -0.7777777778 Simplifying n = -0.7777777778Subproblem 2
Set the factor '(1 + -1n)' equal to zero and attempt to solve: Simplifying 1 + -1n = 0 Solving 1 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1n = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1n = 0 + -1 -1n = 0 + -1 Combine like terms: 0 + -1 = -1 -1n = -1 Divide each side by '-1'. n = 1 Simplifying n = 1Solution
n = {-0.7777777778, 1}
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