Find 2 consecutive positive integers ,sum of whose squares is 365
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Given:-
- Sum of whose is 365.
To find:-
- Two consecutive positive integer...?
Solutions:-
- Let the conservative 1st position integer be x.
- Let the conservative 2n position integer be x + 1.
we know that;
=> x² + (x + 1)² = 365
=> x² + x² + 1 + 2x = 365
=> 2x² + 2x - 364 = 0
=> x² + x - 182 = 0
=> x² + 14x - 13x - 182 = 0
=> x(x + 14) - 13(x + 14) = 0
=> (x + 14) (x - 13) = 0
=> x + 14 = 0 or x - 13 = 0
=> x = - 14 or x = 13
- Since, the integers are positive, x can only be 13.
Therefore,
=> x + 1
=> 13 + 1
=> 14
Hence, the consecutive positive integer be 13 and 14.
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