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Populaire Word Problems >

The sum of the square of a positive number and four times the number is 60. 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 f o u r t im es t h e n u mb er i s 60. Wha t i s t h e n u mb er ?

Solution

The number : 6

étapes des solutions

Represent the number with

x

A.T.Q.:

x^{2} + 4 x = 60

Solutionner pour

x, x^{2} + 4 x = 60 : x = 6, x = - 10

Select positive solutions:

6

The number : 6

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