To simplify this expression, first find a common denominator for the fractions:

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

The common denominator will be 2a * a^2 = 2a^3.

So the expression becomes:

[(3a-4)(a)]/[(2a)(a)] + [(2a-1)(2a)]/[(a^2)(2a)]

Expanding both numerators:

(3a^2 - 4a)/(2a^2) + (4a^2 - 2a)/(2a^3)

Now combine the fractions:

[(3a^2 - 4a) + (4a^2 - 2a)] / 2a^3

Now simplify the numerator:

(3a^2 - 4a + 4a^2 - 2a) / 2a^3

(7a^2 - 6a) / 2a^3

Now factor out the common factor:

a(7a - 6) / 2a^3

This simplifies to:

(7a^2 - 6a) / 2a^2