SOLUTION: The square of a number is 90 more than the number find the number

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Question 992152: The square of a number is 90 more than the number find the number
Answer by ikleyn(52794)   (Show Source): You can put this solution on YOUR website!
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Solve this quadratic equation.

Use the quadratic formula or the Viete's theorem.

The roots are 10 and - 9.

Both roots are the solutions.


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