5y/10y+5*14y+7/5

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Solution for 5y/10y+5*14y+7/5 equation: 


y in (-oo:+oo)

((5*y)/10)*y+5*14*y+7/5 = 0

1/2*y^2+70*y+7/5 = 0

DELTA = 70^2-(1/2*7/5*4)

DELTA = 24486/5

DELTA > 0

y = ((24486/5)^(1/2)-70)/(1/2*2) or y = (-(24486/5)^(1/2)-70)/(1/2*2)

y = (24486/5)^(1/2)-70 or y = -((24486/5)^(1/2)+70)

y in { -((24486/5)^(1/2)+70), (24486/5)^(1/2)-70 }

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