Step-by-step explanation:
13.8564064606
hope it helps
Answer
(x2−2–√)2=2(x2−2)2=2
x2−2–√=±2–√x2−2=±2
x2=2–√±2–√x2=2±2
x2=0x2=0 or 22–√22
x=0x=0 or ±22–√−−−−√±22
x=0,±8−−√4x=0,±84
