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Populaire Word Problems >

The square of a number is equal to 72 more than the number. Find all such numbers.

Solution

T h e s q u a re o f a n u mb er i s e q u a l t o 72 m ore t han t h e n u mb er . F in d a ll s u c h n u mb ers .

Solution

The number : 9 or - 8

étapes des solutions

Represent the number with

x

A.T.Q.:

x^{2} = 72 + x

Solutionner pour

x, x^{2} = 72 + x : x = 9, x = - 8

The number : 9 or - 8

Exemples populaires

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