49/(2m^2)-8

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Solution for 49/(2m^2)-8 equation: 


D( m )

2*m^2 = 0

2*m^2 = 0

2*m^2 = 0

2*m^2 = 0 // : 2

m^2 = 0

m = 0

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

49/(2*m^2)-8 = 0

49/2*m^-2 = 8 // : 49/2

m^-2 = 16/49

-2 < 0

1/(m^2) = 16/49 // * m^2

1 = 16/49*m^2 // : 16/49

49/16 = m^2

m^2 = 49/16 // ^ 1/2

abs(m) = 7/4

m = 7/4 or m = -7/4

m in { 7/4, -7/4 }

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