SOLUTION: if the 1st,2nd and 3rd digits are all the same. together they form a 3-digit number that is 70 less than the square of the product of the first two digits. what is the 3-digit numb
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Question 827350: if the 1st,2nd and 3rd digits are all the same. together they form a 3-digit number that is 70 less than the square of the product of the first two digits. what is the 3-digit number? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! if the 1st,2nd and 3rd digits are all the same.
together they form a 3-digit number that is 70 less than the square of the product of the first two digits.
what is the 3-digit number?
:
100n + 10n + n = n^2 - 70
111n = (n*n)^2 - 70
0 = n^4 - 111n - 70
Let's try n = 5
625 - 555 - 70
:
555 is the number
