Question

Сократите дробь:

3a^2 - 5a -2 / a^2 - 4 = 0

Answer 1

3a^2-5a-2=(a-2)(3a+1)
(3a^2-5a-2)/(a^2-4)=(a-2)(3a+1)/(a-2)(a+2)=(3a+1)/(a+2)