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人気のある Word Problems >

When a number is added to its square, the result is 56 . Determine the number

解

Wh e n a n u mb er i s a dd e d t o i t s s q u a re, t h e res u lt i s 56 . De t er min e t h e n u mb er

解

The number : 7 or - 8

解答ステップ

Represent the number with

x

A.T.Q.:

x^{2} + x = 56

x

を解く

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

The number : 7 or - 8

人気の例

4 years from now, Matthew will be 2 more than twice Andrew's age. 5 years ago, Matthew was three times Andrew's age. Let Andrew's age be x. Determine Andrew's current age.The product of four more than a number and nine is fifteen.The sum of the squares of two consecutive even integers is 1684 The sum of three consecutive integers is 258. List the numbers from smallest to largest:alan is 5 times the age of his son tom. in 6 years he will be 3 times the age of tom. How old is alan now