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September 18, 2014

September 18, 2014

Posted by **Angela** on Tuesday, September 7, 2010 at 11:36pm.

(r.r) (r.r)

- pre algebra 7th grade -
**PsyDAG**, Wednesday, September 8, 2010 at 10:37amI am not familiar with your notation. What does the period indicate? Multiplication? A decimal?

Online multiplication is indicated by "*".

(r*r)(r*r) = r^4 (r to the fourth power)

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