Guys if you could just help me with any of these problems it would greatly be appreciated..I just can't seem to get factoring..thanks again

1. Factor completely: 4u^2-7u-28u+49 ANSWERED

2. Solve: 2v^2=5v+3

3. Factor by grouping: 2s^2+7s+5

4. Factor the trinomial: 3w^2-39w+108

5. Factor: 50w^2+20w+2

6. Factor the trinomial: 42a^2-13a-42

7. Solve: 6w^2=7w

8. Solve the equation: 49s^2+84s=-36

9. Solve: a^2=35-2a

10. Solve the equation for a: 5a^2+39a+54=0

11. Factor by grouping: 6c^2-19c+10

12. Factor by grouping: 4+7xy-14y-2x

13. Factor by grouping: 4u^2+9u-28

Once again ANY help would be greatly appreciated..I know its alot and I apologize but this topic is NOT my cup of tea