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perfect square

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A quartic polynomial that is a perfect square 2012-02-05
From archit:
If P(x)=x^4+ax^3+bx^2-8x+1 is a perfect square then (a+b)=?
Answered by Penny Nom.
U(n+1) = 2Un + 1 2011-05-22
From Cillian:
In a certain sequence, to get from one term to the other you multiply by 2 and add 1, i.e. This is a difference equation of form: U(n+1) = 2Un + 1. prove that there is a maximum of 2 perfect squares in this sequence
Answered by Claude Tardif.
Two problems 2010-04-13
From Dorothy:
1. Explain why the number 123, 456, 789, 101, 112 cannot be a perfect square. (Hint: What is the units digit?)

2. A substance doubles in volume every minute. At 9:00A.M., a small amount is placed in a container. At 10:00A.M., the container is just full. At what time was the container one-eighth full?

Answered by Robert Dawson.
A perfect square 2010-02-20
From george:
can this number 400....006 be a perfect square . how to solve problems like this.
Answered by Chris Fisher and Tyler Wood.
Is zero a perfect square? 2008-08-14
From peter:
is zero a perfect square?
Answered by Penny Nom.
What is the largest perfect square factor of 1512? 2008-07-02
From peter:
What is the largest perfect square factor of 1512?
Answered by Penny Nom.
For how many positive integers n is n^2 + 96 is a perfect square? 2007-12-18
From Rajesh:
For how many positive integers n is n^2 + 96 is a perfect square ?
Answered by Penny Nom.
A perfect square that is equal to 1 acre 2005-07-31
From Shannon:
If you have a perfect square that is equal to 1 acre, what is the length of the sides and how do you do it?
Answered by Penny Nom.
 
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