If you are decorating a square mouse pad. You placed a colored sticker in each corner. If you had r different colors available, r to 4th power + 2 times r to third power, + 3 times r to the second power + 2 times r divided by 8. 2 patterns are different if you can not produce

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Louis Koch

5 June, 23:04

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Martin Mccall · Answer 1

problem is r^4+2*r^3+3*r^2+2*r/8.2

r 4 +2r 3 +3r 2 + 8.2 2r

r 4 +2r 3 +3r 2 +0.243902r answer