Factorising Quadratics

Question 1:

x249
x7x+7

Question 2:

x22x35
x7x+5

Question 3:

x24x+3
x1x3

Question 4:

x27x+12
x4x3

Question 5:

x2+11x+10
x+10x+1

Question 6:

x2+5x6
x+6x1