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人気のある Word Problems >

The 差 of the squares of two consecutive even integers is 68. What are these numbers?

解

T h e d i ff ere n ce o f t h e s q u a res o f tw o co n sec u t i v e e v e n in t e g ers i s 68. Wha t a re t h ese n u mb ers ?

解

The numbers : - 18, - 16

解答ステップ

Represent the numbers with

x

:

First number : x

Consecutive number : x + 2

A.T.Q.:

x^{2} - (x + 2)^{2} = 68

解く

x^{2} - (x + 2)^{2} = 68 : x = - 18

x + 2 = - 18 + 2 = - 16

The numbers : - 18, - 16

人気の例

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