Expanding Quadratics

Question 1:

x8x7
x215x+56

Question 2:

x+10x1
x2+9x10

Question 3:

3x+4x1
3 x2+x4

Question 4:

4x1x+3
4 x2+11x3

Question 5:

2x32x3
4 x212x+9

Question 6:

4x73x7
12 x249x+49