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Phổ biến Word Problems >

The product of two consecutive integers is 420. chuyển đổi sang tiêu chuẩn

Lời Giải

T h e p ro d u c t o f tw o co n sec u t i v e in t e g ers i s 420. s t an d a r d f or m

Lời Giải

The numbers : 20, 21 or - 21, - 20

Các bước giải pháp

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 420

Giải

x (x + 1) = 420 : x = 20, x = - 21

Thay

x = 20 : 21

Thay

x = - 21 : - 20

The numbers : 20, 21 or - 21, - 20

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