ctr1023 ctr1023 20-05-2014 Mathematics Answered Can you factor these trinomials? thanks!1. 5n^2-4n-1 2. 2n^2+5n-3 3. 7n^2-13n-2 4. 3t^2+14t-5 5. 4t^2-11t+7 6. 6t^2+5t-1 7. 3t^2-20t-7