Answer:
x2+22x+121, which factorises as (x+11)2
Note that to do this, the coefficient of x2 must be 1
Step-by-step explanation:
( x − 11 ) 2
n=-2
answers are shown and pictured
187
-2x-6=8x+ 12-x-4
x-2x-6=8x+12-4