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פּוֹפּוּלָרִי Word Problems >

the sum of the squares of two consecutive even integers is 20. Find the integers.

פתרון

t h e s u m 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 20. F in d t h e in t e g ers .

פתרון

The numbers : 2, 4 or - 4, - 2

צעדי פתרון

Represent the numbers with

x

:

First number : x

Consecutive number : x + 2

A.T.Q.:

x^{2} + (x + 2)^{2} = 20

x^{2} + (x + 2)^{2} = 20

פתור את:

x = 2, x = - 4

x = 2

החלף את:

4

x = - 4

החלף את:

- 2

The numbers : 2, 4 or - 4, - 2

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