(9-m^2)(7m^3)/(3-m)(14m)

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Solution for (9-m^2)(7m^3)/(3-m)(14m) equation: 


D( m )

3-m = 0

3-m = 0

3-m = 0

3-m = 0 // - 3

-m = -3 // * -1

m = 3

m in (-oo:3) U (3:+oo)

14*m*((7*m^3*(9-m^2))/(3-m)) = 0

(7*14*m*m^3*(9-m^2))/(3-m) = 0

( 14*m )

14*m = 0 // : 14

m = 0

( 7*m^3 )

7*m^3 = 0 // : 7

m^3 = 0

m = 0

( 9-m^2 )

-1*m^2 = -9 // : -1

m^2 = 9

m^2 = 9 // ^ 1/2

abs(m) = 3

m = 3 or m = -3

m in { 3} 

m in { 0, 0, -3 }

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