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# How is -4 divided by -4 = -8

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1. (Original post by abc:))
Lol I'm being destroyed I really need this explaining to me
Easy target and I'm bored tbh

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2. (Original post by drandy76)
Technically speaking it is getting smaller if we're only concerned with the magnitudes

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But we're not
3. (Original post by Student403)
But we're not
Traitor

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4. I think what's happened is the divide sign on your calculator has been rubbed out a bit and now looks like a minus sign.
5. (Original post by tanyapotter)
I think what's happened is the divide sign on your calculator has been rubbed out a bit and now looks like a minus sign.
6. (Original post by Kvothe the arcane)
He still could have typed -4-4 into his calculator.
7. (Original post by NoahMal)
-4/-4 Firstly two negatives cancel out hence its 4/4 which is 1 therefore by mathematical induction it does not equal -8....
This is correct. I agree wholeheartedly.
8. I'm gonna start off by assuming that where k is some constant.

and so we now know that .

From our original equation we have and we know that anything divided by 0 is infinity, and so .

We reject the positive solution because x = -4 in our original example and so it must be negative infinity: .

Infinity is just an rotated 90 or 270 degrees, so and it follows that , hence -4 divided by -4 is indeed -8.
9. (Original post by Ayman!)
I'm gonna start off by assuming that where k is some constant.

and so we now know that .

From our original equation we have and we know that anything divided by 0 is infinity, and so .

We reject the positive solution because x = -4 in our original example and so it must be negative infinity: .

Infinity is just an rotated 90 or 270 degrees, so and it follows that , hence -4 divided by -4 is indeed -8.
Today is a good day in maths history
10. (Original post by Ayman!)
I'm gonna start off by assuming that where k is some constant.

and so we now know that .

From our original equation we have and we know that anything divided by 0 is infinity, and so .

We reject the positive solution because x = -4 in our original example and so it must be negative infinity: .

Infinity is just an rotated 90 or 270 degrees, so and it follows that , hence -4 divided by -4 is indeed -8.
nah you forgot you have to rotate the k by 90 or 270 degrees as well

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