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find the some of two consecutive …

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find the some of two consecutive postive integers sum of whose squares is 365 

  • 1 answers

Rashmi Bajpayee 9 years ago

Let one of the consecutive number be x.

Therefore other consecutive number be (x + 1)

According to question,

(x)2 + (x + 1)2 = 365

x2 + x2 + 2x + 1 = 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 (neglected), x = 13

Therefore required two positive integers are 13 and 14.

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