Expanding Quadratics

Question 1:

x+10x+7
x2+17x+70

Question 2:

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

Question 3:

8x+3x+2
8 x2+19x+6

Question 4:

5x+9x2
5 x2x18

Question 5:

4x+73x8
12 x211x56

Question 6:

4x72x+3
8 x22x21