(m^2-3m-7)/(m+2)

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Solution for (m^2-3m-7)/(m+2) equation: 


D( m )

m+2 = 0

m+2 = 0

m+2 = 0

m+2 = 0 // - 2

m = -2

m in (-oo:-2) U (-2:+oo)

(m^2-(3*m)-7)/(m+2) = 0

(m^2-3*m-7)/(m+2) = 0

m^2-3*m-7 = 0

m^2-3*m-7 = 0

DELTA = (-3)^2-(-7*1*4)

DELTA = 37

DELTA > 0

m = (37^(1/2)+3)/(1*2) or m = (3-37^(1/2))/(1*2)

m = (37^(1/2)+3)/2 or m = (3-37^(1/2))/2

(m-((3-37^(1/2))/2))*(m-((37^(1/2)+3)/2)) = 0

((m-((3-37^(1/2))/2))*(m-((37^(1/2)+3)/2)))/(m+2) = 0

( m-((3-37^(1/2))/2) )

m-((3-37^(1/2))/2) = 0 // + (3-37^(1/2))/2

m = (3-37^(1/2))/2

( m-((37^(1/2)+3)/2) )

m-((37^(1/2)+3)/2) = 0 // + (37^(1/2)+3)/2

m = (37^(1/2)+3)/2

m in { (3-37^(1/2))/2, (37^(1/2)+3)/2 }

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