To factor a trinomial of the form ax^2 + bx + c into two linear terms, we need to find two numbers p and q that multiply to give c, and add to give b. In this case, c is 72 and b is 24c, so we can take p to be 8 and q to be 9. We can then write the trinomial as (2c + 8)(c + 9), which is the product of two linear terms.