Write the following in the form x+a2+b

Question 1:

x2+14x7
x+7256

Question 2:

x2+8x3
x+4219

Question 3:

x2+4x+8
x+22+4

Question 4:

x22x9
x1210

Question 5:

x214x5
x7254

Question 6:

x2+6x4
x+3213