The product of two consecutive odd integers is 63 . Find the integers.Note: Each set of brackets represents one solution.

해법

T h e p ro d u c t o f tw o co n sec u t i v e o dd in t e g ers i s 63 . F in d t h e in t e g ers . N o t e : E a c h se t o f b r a c k e t s re p rese n t s o n e so l u t i o n .

The numbers : 7, 9 or - 9, - 7

솔루션 단계

Represent the numbers with

x

First number : x

Consecutive number : x + 2

A.T.Q.:

x (x + 2) = 63

x (x + 2) = 63

해결 :

x = 7, x = - 9

x = 7

끼우다 :

9

x = - 9

끼우다 :

- 7

The numbers : 7, 9 or - 9, - 7