de

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Beliebt Word Problems >

The product of two consecutive numbers is 72. Use a quadratic equation to find the two sets of numbers.

Lösung

T h e p ro d u c t o f tw o co n sec u t i v e n u mb ers i s 72. U se a q u a d r a t i c e q u a t i o n t o f in d t h e tw o se t s o f n u mb ers .

Lösung

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

Schritte zur Lösung

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 72

Löse

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

Setze ein

x = 8 : 9

Setze ein

x = - 9 : - 8

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

Beliebte Beispiele

An item is regularly priced at 20 dollars . It is on sale for 70% off the regular price. What is the sale price?What was the original price of a football 30% 104 If 4 is subtracted from a number, the result is 2.Beck's Books sold 264 bookmarks this year. That is 40% fewer than the store sold last year. How many bookmarks did Beck's Books sell last year?Eight times a number plus five times another number is-13. The sum of the two numbers is 1. What are the numbers?