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05-08-2020
Mathematics

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Wanting someone to help me with the procedures
n²+n=120

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mikayla1687 mikayla1687

05-08-2020

n^2 + n - 120 = 0

Quadratic formula
a = 1, b = 1, c = -120
n = [-1 plus or minus root(1^2 - 4(1)(-120))] / 2(1)
n = (-1 plus or minus root481)/2
n =(approximately) 10.5 or -11.5

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