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Popolare Word Problems >

The product of two consecutive numbers is 72. What are the numbers?

Soluzione

T h e p ro d u c t o f tw o co n sec u t i v e n u mb ers i s 72. Wha t a re t h e n u mb ers ?

Soluzione

The numbers : 8, 9 or - 9, - 8

Fasi della soluzione

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 72

Risolvi

x (x + 1) = 72 : x = 8, x = - 9

Inserire in

x = 8 : 9

Inserire in

x = - 9 : - 8

The numbers : 8, 9 or - 9, - 8

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