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Popolare Word Problems >

Find two consecutive integers such that the square of the smaller plus twice the larger is50.

Soluzione

F in d tw o co n sec u t i v e in t e g ers s u c h t ha t t h e s q u a re o f t h e s ma ll er pl u s tw i ce t h e l a r g er i s 50.

Soluzione

The numbers : 6, 7 or - 8, - 7

Fasi della soluzione

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x^{2} + 2 (x + 1) = 50

Risolvi

x^{2} + 2 (x + 1) = 50 : x = 6, x = - 8

Inserire in

x = 6 : 7

Inserire in

x = - 8 : - 7

The numbers : 6, 7 or - 8, - 7

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