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Question Number 144517 by Khalmohmmad last updated on 26/Jun/21
Answered by som(math1967) last updated on 26/Jun/21
a4+b4+2a2b2−(a2+b2)−6=0(a2+b2)2−(a2+b2)−6=0x2−x−6=0[letx=a2+b2](x−3)(x+2)=0x=3,−2∴a2+b2=3,−2
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