(v^2-6v-7)/(98-2v^2)

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Solution for (v^2-6v-7)/(98-2v^2) equation: 


D( v )

98-(2*v^2) = 0

98-(2*v^2) = 0

98-(2*v^2) = 0

98-2*v^2 = 0

-2*v^2 = -98 // : -2

v^2 = 49

v^2 = 49 // ^ 1/2

abs(v) = 7

v = 7 or v = -7

v in (-oo:-7) U (-7:7) U (7:+oo)

(v^2-(6*v)-7)/(98-(2*v^2)) = 0

(v^2-6*v-7)/(98-2*v^2) = 0

v^2-6*v-7 = 0

v^2-6*v-7 = 0

DELTA = (-6)^2-(-7*1*4)

DELTA = 64

DELTA > 0

v = (64^(1/2)+6)/(1*2) or v = (6-64^(1/2))/(1*2)

v = 7 or v = -1

(v+1)*(v-7) = 0

((v+1)*(v-7))/(98-2*v^2) = 0

( v+1 )

v+1 = 0 // - 1

v = -1

( v-7 )

v-7 = 0 // + 7

v = 7

v in { 7} 

v = -1

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