(a^2+2a)/(a^2+3a+2)

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Solution for (a^2+2a)/(a^2+3a+2) equation: 


D( a )

a^2+3*a+2 = 0

a^2+3*a+2 = 0

a^2+3*a+2 = 0

a^2+3*a+2 = 0

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

DELTA = 1

DELTA > 0

a = (1^(1/2)-3)/(1*2) or a = (-1^(1/2)-3)/(1*2)

a = -1 or a = -2

a in (-oo:-2) U (-2:-1) U (-1:+oo)

(a^2+2*a)/(a^2+3*a+2) = 0

a^2+2*a = 0

a*(a+2) = 0

a+2 = 0 // - 2

a = -2

a*(a+2) = 0

a^2+3*a+2 = 0

a^2+3*a+2 = 0

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

DELTA = 1

DELTA > 0

a = (1^(1/2)-3)/(1*2) or a = (-1^(1/2)-3)/(1*2)

a = -1 or a = -2

(a+2)*(a+1) = 0

(a*(a+2))/((a+2)*(a+1)) = 0

( a+2 )

a+2 = 0 // - 2

a = -2

( a )

a = 0

a in { -2} 

a = 0

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