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Question Number 209304 by RoseAli last updated on 06/Jul/24

Answered by A5T last updated on 06/Jul/24

a^x +b^x =62 a+b=8;ab=1 a^2 +b^2 =(a+b)^2 −2ab=64−2=62 ⇒x=2

ax+bx=62a+b=8;ab=1a2+b2=(a+b)2−2ab=64−2=62⇒x=2

Commented by RoseAli last updated on 06/Jul/24

Thanks

Commented by Frix last updated on 06/Jul/24

(4+(√(15)))^(−1) =4−(√(15)) ⇒ x=±2

(4+15)−1=4−15⇒x=±2

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