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b^2+4/5b+-1/5

3n^2=-10n-2

2007-04-16 13:58:40 · 1 answers · asked by crazy 2 1 in Science & Mathematics Mathematics

1 answers

b^2+4/5b+1/5=0
5b^2+4b+1=0
no real roots

b^2+4/5b-1/5=0
5b^2+4b-1=0
b1=-5/8

b2=1/8

Hint: use quadratic formula

3n^2=-10n-2

3n^2+10n+2=0
n1=(-5-sqrt(19))/3
n2=(-5+sqrt(19))/3

2007-04-16 14:07:29 · answer #1 · answered by iyiogrenci 6 · 0 0

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