(3/5)q^2-4q-160=0

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Solution for (3/5)q^2-4q-160=0 equation: 


q in (-oo:+oo)

(3/5)*q^2-(4*q)-160 = 0

(3/5)*q^2-4*q-160 = 0

3/5*q^2-4*q-160 = 0

DELTA = (-4)^2-(-160*3/5*4)

DELTA = 400

DELTA > 0

q = (400^(1/2)+4)/(3/5*2) or q = (4-400^(1/2))/(3/5*2)

q = 20 or q = -40/3

q in { -40/3, 20 }

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