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Mathematics 21 Online
OpenStudy (anonymous):

Choose the correct simplification of the expression (2b/c)^3 A. 2b^3/c^3 B. 8b^3/c^3 C. 2b^3/c D. 2b/c^3 I believe the correct answer is A. Is that right??

OpenStudy (anonymous):

b

OpenStudy (anonymous):

you have to cube the 2 as well, so a is not right

OpenStudy (anonymous):

You can think about this as (2b/c)^3 * (2b/c)^3 * (2b/c)^3 = 8b^3/c^3. So B.

OpenStudy (anonymous):

Ohh okay, I see. Thanks :)

OpenStudy (anonymous):

Wait, (2b/c) * (2b/c) * (2b/c). Sorry. Still B.

OpenStudy (anonymous):

B

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