(m^2-8m-16)/(m-9)

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Solution for (m^2-8m-16)/(m-9) equation: 


D( m )

m-9 = 0

m-9 = 0

m-9 = 0

m-9 = 0 // + 9

m = 9

m in (-oo:9) U (9:+oo)

(m^2-(8*m)-16)/(m-9) = 0

(m^2-8*m-16)/(m-9) = 0

m^2-8*m-16 = 0

m^2-8*m-16 = 0

DELTA = (-8)^2-(-16*1*4)

DELTA = 128

DELTA > 0

m = (128^(1/2)+8)/(1*2) or m = (8-128^(1/2))/(1*2)

m = (8*2^(1/2)+8)/2 or m = (8-8*2^(1/2))/2

(m-((8-8*2^(1/2))/2))*(m-((8*2^(1/2)+8)/2)) = 0

((m-((8-8*2^(1/2))/2))*(m-((8*2^(1/2)+8)/2)))/(m-9) = 0

( m-((8*2^(1/2)+8)/2) )

m-((8*2^(1/2)+8)/2) = 0 // + (8*2^(1/2)+8)/2

m = (8*2^(1/2)+8)/2

( m-((8-8*2^(1/2))/2) )

m-((8-8*2^(1/2))/2) = 0 // + (8-8*2^(1/2))/2

m = (8-8*2^(1/2))/2

m in { (8*2^(1/2)+8)/2, (8-8*2^(1/2))/2 }

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