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פּוֹפּוּלָרִי Word Problems >

The product of two consecutive integers is 342. Which quadratic equation can be used to find x, the greater number?

פתרון

T h e p ro d u c t o f tw o co n sec u t i v e in t e g ers i s 342. Whi c h q u a d r a t i c e q u a t i o n c an b e u se d t o f in d x, t h e g re a t er n u mb er ?

פתרון

The numbers : 18, 19 or - 19, - 18

צעדי פתרון

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 342

x (x + 1) = 342

פתור את:

x = 18, x = - 19

x = 18

החלף את:

19

x = - 19

החלף את:

- 18

The numbers : 18, 19 or - 19, - 18

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