(3a^2+5a)/(7a-3)

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Solution for (3a^2+5a)/(7a-3) equation: 


D( a )

7*a-3 = 0

7*a-3 = 0

7*a-3 = 0

7*a-3 = 0 // + 3

7*a = 3 // : 7

a = 3/7

a in (-oo:3/7) U (3/7:+oo)

(3*a^2+5*a)/(7*a-3) = 0

3*a^2+5*a = 0

a*(3*a+5) = 0

3*a+5 = 0 // - 5

3*a = -5 // : 3

a = -5/3

a*(a+5/3) = 0

(a*(a+5/3))/(7*a-3) = 0

( a+5/3 )

a+5/3 = 0 // - 5/3

a = -5/3

( a )

a = 0

a in { -5/3, 0 }

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