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Popular Word Problems >

The product of two consecutive integers is 420. standard form

Solution

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

Solution

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

Solution steps

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 420

Solve

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

Plug in

x = 20 : 21

Plug in

x = - 21 : - 20

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

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