The sum of the squares of two consecutive odd numbers is 290. Find the numbers.

해법

T h e s u m o f t h e s q u a res o f tw o co n sec u t i v e o dd n u mb ers i s 290. F in d t h e n u mb ers .

The numbers : 11, 13 or - 13, - 11

솔루션 단계

Represent the numbers with

x

First number : x

Consecutive number : x + 2

A.T.Q.:

x^{2} + (x + 2)^{2} = 290

x^{2} + (x + 2)^{2} = 290

해결 :

x = 11, x = - 13

x = 11

끼우다 :

13

x = - 13

끼우다 :

- 11

The numbers : 11, 13 or - 13, - 11