Write the following in the form x+a2+b

Question 1:

x2+6x10
x+3219

Question 2:

x2+16x+3
x+8261

Question 3:

x2+6x+10
x+32+1

Question 4:

x22x1
x122

Question 5:

x210x+8
x5217

Question 6:

x2+8x+5
x+4211