(7k+7)*5/4k+4

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Solution for (7k+7)*5/4k+4 equation: 


k in (-oo:+oo)

k*((5*(7*k+7))/4)+4 = 0

(5*k*(7*k+7))/4+4 = 0

(5*k*(7*k+7))/4+(4^2)/4 = 0

5*k*(7*k+7)+16 = 0

35*k^2+35*k+16 = 0

35*k^2+35*k+16 = 0

35*k^2+35*k+16 = 0

DELTA = 35^2-(4*16*35)

DELTA = -1015

DELTA < 0

1 = 0

1/4 = 0

1/4 = 0 // * 4

1 = 0

k belongs to the empty set

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