4x/7*7x+14/20x+40

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Solution for 4x/7*7x+14/20x+40 equation: 


x in (-oo:+oo)

7*((4*x)/7)*x+(14/20)*x+40 = 0

4*x^2+7/10*x+40 = 0

DELTA = (7/10)^2-(4*4*40)

DELTA = -63951/100

DELTA < 0

x belongs to the empty set

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