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Mathematics
Rayan
3 January, 11:46
2n^2 - 20
n = 5
?
+3
Answers (
2
)
Anika Gross
3 January, 12:03
0
Use this:
n1,2 = - b + - √b²-4*a*c / 2a
a = 2n (2)
b = - 20
c = - 5 (you have to subtract 5 to get 0)
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Conor Kaiser
3 January, 12:52
0
2n^2-20=0
2n^2=20
n^2=20:2
n^2=10
n=radical 10
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