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Popular >

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

Solución

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

Solución

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

Pasos de solución

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 72

Resolver

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

Sustituir

x = 8 : 9

Sustituir

x = - 9 : - 8

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

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