Can you factor these trinomials? !
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

Which is an equation for the nth terms of the sequence 12,15,18,21

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Can someone me with the property questions for 12 13 and 14 plz