Sorry

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Posted by Lisa on October 01, 2002 at 23:04:23:

In Reply to: Re: simplifying question posted by T.Gracken on October 01, 2002 at 18:50:28:

sorry i meant
((a*b)/(a+b))^3

: : I got the answer to the question
: : but I am still not sure how far you go to simplify

: : the text book has simplified it like that
: : [(a^3)(b^3)]/[(a+b)^3}
: : why why not like ((a/b)/(a+b))^3
: : I looked at the rules and it seemed right.

: where did you come up with (a/b)?

: if the problem is to simplify [(a^3)(b^3)]/[(a+b)^3] then the answer should be

: [a³b³]/[a³ + 3a²b + 3ab² + b³]

: however, if you want a reduced fraction in factored form it should be

: [a³b³]/[(a + b)³]

: or if asked for reduced exponential form, it should be

: [(ab)/(a+b)]³

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no need to feel sorry... you had one of the "forms" -nt- T.Gracken 07:53:36 10/02/02 (0)

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Comments:
: sorry i meant : ((a*b)/(a+b))^3 : : : : I got the answer to the question : : : but I am still not sure how far you go to simplify : : : the text book has simplified it like that : : : [(a^3)(b^3)]/[(a+b)^3} : : : why why not like ((a/b)/(a+b))^3 : : : I looked at the rules and it seemed right. : : where did you come up with (a/b)? : : if the problem is to simplify [(a^3)(b^3)]/[(a+b)^3] then the answer should be : : [a3b3]/[a3 + 3a2b + 3ab2 + b3] : : however, if you want a reduced fraction in factored form it should be : : [a3b3]/[(a + b)3] : : or if asked for reduced exponential form, it should be : : [(ab)/(a+b)]3

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