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a fost răspuns

5²²+5²¹+5²⁰ supra 60 = 25¹⁰ supra x

Răspuns :

5²°(5²+5+1)/60=(5²)¹⁰/x
5²⁰·31/60=5²⁰/x
5²⁰·31x=5²⁰·60
x=(5²⁰·60)/(5²⁰·31)
x=60/31

5²⁰(5²+5¹+1)/60=(5²)¹⁰/x
5²⁰×(25+5+1)/60=5²⁰/x
5²⁰×31/60=5²⁰/x
x=5²⁰×60/5²⁰×31
x=60/31