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Popular Word Problems >

The sum of the square of a positive number and the number itself is 210 . What is the number?

Solution

T h e s u m o f t h e s q u a re o f a p os i t i v e n u mb er an d t h e n u mb er i t se l f i s 210 . Wha t i s t h e n u mb er ?

Solution

The number : 14

Solution steps

Represent the number with

x

A.T.Q.:

x^{2} + x = 210

Solve for

x, x^{2} + x = 210 : x = 14, x = - 15

Select positive solutions:

14

The number : 14

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