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[" 13.If for a positive integern the equ...

[" 13.If for a positive integern the equation,"x(x+1)+(x+1)(x+2)+(x+bar(n-1))(x+n)=,10n],[" has tho rocontre integralatotitions,then nis equal to "],[[" (3) "10," [1) EE(Main) "2017,(4,-1),1201],[" (1) "12," S) "10,=(9)/(1)=(b)/(5)]]

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