Nobu
Nobu
30-01-2017
Mathematics
contestada
2n^2 - 20
n= 5
?????
Respuesta :
Rola100
Rola100
30-01-2017
2n^2-20=0
2n^2=20
n^2=20÷2
n^2=10
n=radical 10
Answer Link
Norbix9
Norbix9
30-01-2017
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)
Answer Link
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