5k^2-35k/7-k

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Solution for 5k^2-35k/7-k equation: 


k in (-oo:+oo)

5*k^2-((35*k)/7)-k = 0

5*k^2-5*k-k = 0

5*k^2-6*k = 0

DELTA = (-6)^2-(0*4*5)

DELTA = 36

DELTA > 0

k = (36^(1/2)+6)/(2*5) or k = (6-36^(1/2))/(2*5)

k = 6/5 or k = 0

k in { 0, 6/5 }

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