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#1 2012-09-19 21:57:47
- Agnishom
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What must be added?
What must be added to the following expression to make it a perfect square?
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'The whole person changes, why can't a habit?' -65
#3 2012-09-20 01:44:13
- Agnishom
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Re: What must be added?
Please expain why you get
Last edited by Agnishom (2012-09-20 01:45:47)
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'The whole person changes, why can't a habit?' -65
#4 2012-09-20 02:14:07
- Agnishom
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Re: What must be added?
Yeah!
I coudn't pay enough concentration.
Sometimes it happens
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'The whole person changes, why can't a habit?' -65
#6 2012-09-20 15:01:09
- Agnishom
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Re: What must be added?
Thanks!
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'The whole person changes, why can't a habit?' -65
#7 2012-09-20 17:01:39
- bobbym
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Re: What must be added?
Hi Agnishom;
There is another way which does not require any of the heavy machinery.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#8 2012-09-21 22:57:49
- Agnishom
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Re: What must be added?
Really? Whazzit?
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'The whole person changes, why can't a habit?' -65
#9 2012-09-21 23:04:21
- bobbym
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Re: What must be added?
Hi;
The method depends on inspection and some knowledge of common squares. I am only offering it as a sometime faster alternative. In most cases you should use and learn the method used in post #2.
Let b be what you have to add.
You are looking for a b in
that makes a square. So start with
You have 2 equations which say what b must be added to b + 56 and b + 200 that give you two squares. Well the next square after 56 is 64 so b = 8 is a possibility but 200 + 8 is not a square.
Then next square is 81 which means in b + 56 = 81 b would be 25. Plugging in b into the second equation 25 + 200 = 225 which is a square too. You are done, b = 25.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#10 2012-09-22 14:16:19
- Agnishom
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Re: What must be added?
I think #2 was better 
It doesn't look very tedious except that I was a little bit confused then
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'The whole person changes, why can't a habit?' -65
#11 2012-09-22 17:20:21
- bobbym
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Re: What must be added?
Okay, I just thought you might want to see something else.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.