Expanding Quadratics

Question 1:

x3x+8
x2+5x24

Question 2:

x3x4
x27x+12

Question 3:

4x+1x+5
4 x2+21x+5

Question 4:

8x3x+5
8 x2+37x15

Question 5:

4x+73x2
12 x2+13x14

Question 6:

3x72x+1
6 x211x7