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

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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) About Me  (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) About Me  (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: highlight_green%28matrix%281%2C7%2C+Number%2C+can%2C+either%2C+be%2C+15%2C+or%2C+-+16%29%29