(40-4m)/(-m^2-25)

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Solution for (40-4m)/(-m^2-25) equation: 


D( m )

(-m)^2-25 = 0

(-m)^2-25 = 0

(-m)^2-25 = 0

1*m^2 = 25 // : 1

m^2 = 25

m^2 = 25 // ^ 1/2

abs(m) = 5

m = 5 or m = -5

m in (-oo:-5) U (-5:5) U (5:+oo)

(40-(4*m))/((-m)^2-25) = 0

(40-4*m)/((-m)^2-25) = 0

(40-4*m)/(m^2-25) = 0

40-4*m = 0 // - 40

-4*m = -40 // : -4

m = -40/(-4)

m = 10

m = 10

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