16a^2-16/28a+28

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Solution for 16a^2-16/28a+28 equation: 


a in (-oo:+oo)

16*a^2-((16/28)*a)+28 = 0

16*a^2+(-4/7)*a+28 = 0

16*a^2-4/7*a+28 = 0

DELTA = (-4/7)^2-(4*16*28)

DELTA = -87792/49

DELTA < 0

a belongs to the empty set

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