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人気のある Word Problems >

The product of two consecutive even integers is eighty.

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 e i g h t y .

解

The numbers : 8, 10 or - 10, - 8

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

挿入

x = 8 : 10

挿入

x = - 10 : - 8

The numbers : 8, 10 or - 10, - 8

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