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Simplifying 245n2 + 70n + -240 = 0 Reorder the terms: -240 + 70n + 245n2 = 0 Solving -240 + 70n + 245n2 = 0 Solving for variable 'n'. Factor out the Greatest Common Factor (GCF), '5'. 5(-48 + 14n + 49n2) = 0 Factor a trinomial. 5((-8 + -7n)(6 + -7n)) = 0 Ignore the factor 5.Subproblem 1
Set the factor '(-8 + -7n)' equal to zero and attempt to solve: Simplifying -8 + -7n = 0 Solving -8 + -7n = 0 Move all terms containing n to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -7n = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -7n = 0 + 8 -7n = 0 + 8 Combine like terms: 0 + 8 = 8 -7n = 8 Divide each side by '-7'. n = -1.142857143 Simplifying n = -1.142857143Subproblem 2
Set the factor '(6 + -7n)' equal to zero and attempt to solve: Simplifying 6 + -7n = 0 Solving 6 + -7n = 0 Move all terms containing n to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -7n = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -7n = 0 + -6 -7n = 0 + -6 Combine like terms: 0 + -6 = -6 -7n = -6 Divide each side by '-7'. n = 0.8571428571 Simplifying n = 0.8571428571Solution
n = {-1.142857143, 0.8571428571}
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