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
Explanation:
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