SOLUTION: 1-the sum of number and its squre is 240. The number is...... 2-the sum of three consecutive numbers are 81, then the other number is

Question 1088376: 1-the sum of number and its squre is 240. The number is......
2-the sum of three consecutive numbers are 81, then the other number is

Found 2 solutions by htmentor, MathTherapy:
Answer by htmentor(1343) (Show Source): You can put this solution on YOUR website!
Let n = the number
In equation form, we have n^2 + n = 240 -> n^2 + n - 240 = 0
Factor:
(n+15)(n-16) = 0
This gives to possibilities: n=-15 and n=16

Answer by MathTherapy(10555) (Show Source): You can put this solution on YOUR website!

1-the sum of number and its squre is 240. The number is......
2-the sum of three consecutive numbers are 81, then the other number is

1) Correct answer:
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