The product of two consecutive negative integers is 42. Find the value of the greater integer.

解

T h e p ro d u c t o f tw o co n sec u t i v e n e g a t i v e in t e g ers i s 42. F in d t h e v a l u e o f t h e g re a t er in t e g er .

The largest number : - 6

解答ステップ

Represent the numbers with

x

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 42

解く

x (x + 1) = 42 : x = 6, x = - 7

Select negative solutions:

- 7

x + 1 = - 7 + 1 = - 6

Select the largest solution:

- 6

The largest number : - 6