7/n=7n/64

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Solution for 7/n=7n/64 equation: 


D( n )

n = 0

n = 0

n = 0

n in (-oo:0) U (0:+oo)

7/n = (7*n)/64 // - (7*n)/64

7/n-((7*n)/64) = 0

(-7/64)*n+7/n = 0

7*n^-1-7/64*n^1 = 0

(7*n^0-7/64*n^2)/(n^1) = 0 // * n^2

n^1*(7*n^0-7/64*n^2) = 0

n^1

(-7/64)*n^2+7 = 0

(-7/64)*n^2+7 = 0

DELTA = 0^2-(4*7*(-7/64))

DELTA = 49/16

DELTA > 0

n = ((49/16)^(1/2)+0)/(2*(-7/64)) or n = (0-(49/16)^(1/2))/(2*(-7/64))

n = -8 or n = 8

n in { -8, 8} 

n in { -8, 8 }

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