no need to feel sorry... you had one of the "forms" -nt-

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Posted by T.Gracken on October 02, 2002 at 07:53:36:

In Reply to: Sorry posted by Lisa on October 01, 2002 at 23:04:23:

: 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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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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