<PRE><B>Question 719954</B>
1). Multiply as indicated below.
(x-1)(x^2+x+1)
= x(x^2+x+1) - (x^2+x+1)
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= x^3+x^2+x -x^2-x-1
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= x^3 -1
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2). Find 
(a) the GCF of 28,35,42 is 7
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(b) the LCM of the following monomials
28 = 7*2^2
35 = 7*5
42 = 7*2*3
LCM = 7*2^2*3*5 = 28*15 = 420
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9x^2y and 36xy^3
GCD = 9xy
LCM = 36x^2y^3
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Assuming that none of the solutions are undefined, simplify each of the
following. 
3). (a^2b^2c) / (abc)  = ab
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Cheers,
Stan H.
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