Factorising Quadratics

Question 1:

x2+7x+6
x+6x+1

Question 2:

x212x+35
x7x5

Question 3:

x2+9x+18
x+6x+3

Question 4:

x2+9x+20
x+5x+4

Question 5:

x23x28
x7x+4

Question 6:

x2+x72
x+9x8