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March 30, 2015

March 30, 2015

Posted by **Hannah** on Thursday, September 9, 2010 at 8:04pm.

(2x + 5) 4x - 2x^2(2) / (2x+5)^2

I have no idea what to do for this.

2) Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.

(-3 x^4/7) ^4 / x^-1/2

I know that (-3)^4 would be 81 but I do not know what else to do.

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