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人気のある Word Problems >

The product of two consecutive negative even integers is 80. Find the value of the lesser 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 e v e n in t e g ers i s 80. F in d t h e v a l u e o f t h e l esser in t e g er .

解

The smallest number : - 10

解答ステップ

Represent the numbers with

x

:

First number : x

Consecutive number : x + 2

A.T.Q.:

x (x + 2) = 80

解く

x (x + 2) = 80 : x = 8, x = - 10

Select negative solutions:

- 10

x + 2 = - 10 + 2 = - 8

Select the smallest solution:

- 10

The smallest number : - 10

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