If $f(a) = 3a^2 - a + 5$ and $h(a) = 2a + 1$, evaluate $f(a) - h(a)$.
University of Ilorin MTH102 biochemistry past question
- $3a^2 - 3a + 4$
- $3a^2 - 3a + 10$
- $3a^2 + 3a - 4$
- $3a^2 - a + 4$
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