en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

The difference between the square of a number and twice the number is equal to 8.Find both numbers that satisfy the condition above.

Solution

T h e d i ff ere n ce b e tw ee n t h e s q u a re o f a n u mb er an d tw i ce t h e n u mb er i s e q u a l t o 8. F in d b o t h n u mb ers t ha t s a t i s f y t h e co n d i t i o n ab o v e .

Solution

The number : - 8

Solution steps

Represent the number with

x

A.T.Q.:

x - 2 x = 8

Solve for

x, x - 2 x = 8 : x = - 8

The number : - 8

Popular Examples

a pair of standard dice are rolled. find the probability of rolling sum of 4 with these dice.Emmett opened a savings account and deposited 400.00. The account earns 13% interest, compounded continuously. If he wants to use the money to buy a new bicycle in 1 year, how much will he be able to spend on the bike?Steve invests 1,800 in an account that earns 3.7% annual interest, compounded continuously.What is the value of the account after 10 years? Round your answer to the nearest dollar.3 more than 8 times a number The area of a circle is 1.1304 square feet. What is the circle's radius?