N^4 - 1 = (n^2 - 1)(n^2 + 1)
= (n + 1)(n - 1)(n^2 + 1)
The answer is 6n^3+n^2+6n-4 I hope I helped you!
Here is how to solve this:
18 +4 = 22 bulls
45 + 4 = 50 cows
The original ratio was, 18:45 but now its 22:50 so, no the ratio will not be the same.
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The manger purchased 116 rolls of wallpaper. (5,568/48)
