SOLUTION: when three times a number is added to the square of a number the result is 10. Find the number.

Algebra ->  Problems-with-consecutive-odd-even-integers -> SOLUTION: when three times a number is added to the square of a number the result is 10. Find the number.       Log On


   

Question 815683: when three times a number is added to the square of a number the result is 10. Find the number.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

three times a number is added to the square of a number 'n' the result is 10. Find the number

  n^2 + 3n = 10

  n^2 + 3n - 10 = 0

 (n+5)(n-2) = 0

   (n+5) = 0 , n = -5

0r (n-2) = 0 , n = 2