Help with maths homework.

1. Originally Posted by waterlily
We kept saying it MUST me a typo! I'm not too bad at Maths and it just doesn't make sense. Apparently the kids were told there is an answer and whoever gets it will get extra credit. :-/

I HAVE to solve this!
So hubby basically says you can say there is a pattern of multiplying by 3 towards the negative and positive but that wouldn't be a rule.

2. Originally Posted by SpecialPatrolGroup
Phew.
My DDs only in kindy so I'd be pretty WTF if they were upto this! Haha. Even for grade 2

3. ....
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Last edited by LoveLivesHere; 23-07-2014 at 21:56.

4. Originally Posted by LaDiDah
So hubby basically says you can say there is a pattern of multiplying by 3 towards the negative and positive but that wouldn't be a rule.
Thanks hubby. That's what me and DH have said. Stupid 0.

5. Originally Posted by anewme
The numbers are cubed

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Hubby responds with quizzical expression and "they're not" lol (I have no idea :-p)

6. Yep I was wrong. Not with it tonight.

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7. .

8. 1/-(square root of x) ??

Hmm no I don't think that works either

9. Originally Posted by LaDiDah
You can't square root a negative number apparently
Perhaps you can if the rule puts 'x' in brackets?

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Originally Posted by bel2466
Perhaps you can if the rule puts 'x' in brackets?
I don't think so, because if x is negative it still can't work. Unless I've misunderstood what you mean.

I can't work it out either. The rules that would seem to work for the negatives don't work for the positives. I can't see anything that works for the whole set. I'd love to know the answer when you find out.

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