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受欢迎的 Word Problems >

The product of two consecutive even integers is 120. Find the integers

解答

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 120. F in d t h e in t e g ers

解答

The numbers : 10, 12 or - 12, - 10

求解步骤

Represent the numbers with

x

:

First number : x

Consecutive number : x + 2

A.T.Q.:

x (x + 2) = 120

解

x (x + 2) = 120 : x = 10, x = - 12

代入

x = 10 : 12

代入

x = - 12 : - 10

The numbers : 10, 12 or - 12, - 10

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