Posted by **anonymous** on Wednesday, September 2, 2009 at 1:50pm.

I'm really confused on how to do a few questions. i am supposed to write the expression using exponents.

1. (2a)(2a)(2a)+(x+y)(x+y)

i am supposed to evaluate this one

1. 4(2+2)^3/(3+1)^2

thanks so much

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