Question

find (alpha+beta+gama)/alpha×beta×gama

Answer 1

a = 1 b = -3 c = 7 d = -12


$\alpha + \beta + \gamma = - b\div a$

= 3/1 = 3


$\alpha \beta \gamma = - d \div a$

= 12/1 = 12


Now


$\alpha + \beta + \gamma \div \alpha \beta \gamma$


= 3 / 12

= 1/4


Thanks