zs

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

受欢迎的 Word Problems >

When a number is subtracted from its square, the result is 56. Find the number.

解答

Wh e n a n u mb er i s s u b t r a c t e d f ro m i t s s q u a re, t h e res u lt i s 56. F in d t h e n u mb er .

解答

The number : 8 or - 7

求解步骤

Represent the number with

x

A.T.Q.:

x^{2} - x = 56

求解

x, x^{2} - x = 56 : x = 8, x = - 7

The number : 8 or - 7

流行的例子

You deposit 5000 in an account that pays 2.25% annual interest. Find the balance after 5 years when the interest is compounded quarterly.11 more than twice a number Adam is saving up money to buy a car. Adam puts 7,000.00 into an account which earns 10% interest, compounded annually. How much will he have in the account after 9 years?How much would you have to deposit in an account with a 7.5% interest rate, compounded continuously, to have 2500 dollars in your account 8 years later.What is the volume of a sphere with a 半径 of 6.9 ft, rounded to the nearest tenth of a cubic foot?