Factorising Quadratics

Question 1:

2 x2+7x+5
2x+5x+1

Question 2:

5 x28x+3
5x3x1

Question 3:

4 x2+17x+4
4x+1x+4

Question 4:

4 x2+19x5
4x1x+5

Question 5:

6 x2+7x5
3x+52x1

Question 6:

6 x27x3
3x+12x3