The product of two consecutive even integers is 48 . Find all sets of these integers that satisfy this description.

解

T h e p ro d u c t o f tw o co n sec u t i v e e v e n in t e g ers i s 48 . F in d a ll se t s o f t h ese in t e g ers t ha t s a t i s f y t hi s d escr i pt i o n .

The numbers : 6, 8 or - 8, - 6

解答ステップ

Represent the numbers with

x

First number : x

Consecutive number : x + 2

A.T.Q.:

x (x + 2) = 48

解く

x (x + 2) = 48 : x = 6, x = - 8

挿入

x = 6 : 8

挿入

x = - 8 : - 6

The numbers : 6, 8 or - 8, - 6