Write the following in the form x+a2+b

Question 1:

x2+6x+4
x+325

Question 2:

x26x+3
x326

Question 3:

x2+14x2
x+7251

Question 4:

x28x8
x4224

Question 5:

x2+12x4
x+6240

Question 6:

x2+6x+3
x+326