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ICSE Class 8 Answered

(5-x+2/x)2
Asked by jyotsanasoni1983 | 23 Sep, 2020, 08:47: PM
Expert Answer
To find: (5 - x + 2/x)2

open parentheses 5 minus straight x plus 2 over straight x close parentheses squared equals 5 squared plus straight x squared plus open parentheses 2 over straight x close parentheses squared plus 2 open parentheses 5 close parentheses open parentheses negative straight x close parentheses plus 2 open parentheses 5 close parentheses open parentheses 2 over straight x close parentheses plus 2 open parentheses negative straight x close parentheses open parentheses 2 over straight x close parentheses
equals 25 plus straight x squared plus 4 over straight x squared minus 10 straight x plus 20 over straight x minus 4
equals straight x squared plus 4 over straight x squared minus 10 straight x plus 20 over straight x plus 21
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