Factorising Quadratics

Question 1:

2 x2+11x+12
2x+3x+4

Question 2:

3 x217x+20
3x5x4

Question 3:

3 x2+17x6
3x1x+6

Question 4:

5 x211x12
5x+4x3

Question 5:

6 x25x+1
3x12x1

Question 6:

6 x2+11x+3
2x+33x+1