Expanding Quadratics

Question 1:

x+8x4
x2+4x32

Question 2:

x+9x+2
x2+11x+18

Question 3:

9x7x+3
9 x2+20x21

Question 4:

7x+1x2
7 x213x2

Question 5:

4x+12x7
8 x226x7

Question 6:

2x72x+7
4 x249