1/7y^2-y-1/28=0

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Solution for 1/7y^2-y-1/28=0 equation: 


y in (-oo:+oo)

(1/7)*y^2-y-(1/28) = 0

(1/7)*y^2-y-1/28 = 0

1/7*y^2-y-1/28 = 0

DELTA = (-1)^2-(-1/28*1/7*4)

DELTA = 50/49

DELTA > 0

y = ((50/49)^(1/2)+1)/(1/7*2) or y = (1-(50/49)^(1/2))/(1/7*2)

y = 7/2*((50/49)^(1/2)+1) or y = 7/2*(1-(50/49)^(1/2))

y in { 7/2*(1-(50/49)^(1/2)), 7/2*((50/49)^(1/2)+1) }

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