4/5y^2+8y=12

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Solution for 4/5y^2+8y=12 equation: 


y in (-oo:+oo)

(4/5)*y^2+8*y = 12 // - 12

(4/5)*y^2+8*y-12 = 0

4/5*y^2+8*y-12 = 0

DELTA = 8^2-(-12*4/5*4)

DELTA = 512/5

DELTA > 0

y = ((512/5)^(1/2)-8)/(4/5*2) or y = (-(512/5)^(1/2)-8)/(4/5*2)

y = 5/8*((512/5)^(1/2)-8) or y = -5/8*((512/5)^(1/2)+8)

y in { -5/8*((512/5)^(1/2)+8), 5/8*((512/5)^(1/2)-8) }

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