What is a perfect square and the difference between to squares. (polynomials & algebra 1)
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OpenStudy (anonymous):
an integer n is called a perfect square if n = k^2 for some integer k
OpenStudy (anonymous):
I am sorry could you explain that a little more.
OpenStudy (anonymous):
@sourwing
OpenStudy (anonymous):
is 4 a perfect square?
OpenStudy (anonymous):
Yes?
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OpenStudy (anonymous):
why?
OpenStudy (anonymous):
I am going to take my module 7 DBA in algebra one this afternoon. It says Perfect square trinomial... (a+b)^2=a^2+2ab+b^2.
OpenStudy (anonymous):
sorry i never took algebra 1 :/
OpenStudy (anonymous):
@Nnesha
OpenStudy (anonymous):
@NemesisFeeDz
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OpenStudy (anonymous):
@surjithayer you still there???
OpenStudy (triciaal):
difference between 2 squares
difference what you get when you subtract
a^2 - b^2
trinomial 3 terms
a^2 - b^2 = (a-b)(a+b) = a^2 -ab + ab + b^2 but the -ab and the + ab cancel out
(a-b)^2 = (a-b)(a-b)= a^2 -2ab -b^2
OpenStudy (anonymous):
Oh okay thank you :]
OpenStudy (triciaal):
a perfect square is what you get when you multiply the entity by itself
like previous response above 4 is a perfect square because the square root is an integer can be expressed as a ratio
OpenStudy (anonymous):
A perfect square trinomial.
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