February 24, 2017

Homework Help: Math(Please help)

Posted by Hannah on Monday, September 6, 2010 at 8:51pm.

Simplify each expression. Assume all variables are positive.

1) 3 sqrt2 - 8 sqrt128

I think you subtract the 3 from the 8 but I do not know what else to do.

2) Simplify expression. Answer should have only positive exponents.

(8x^3 y^-1/2)^2/15

Do I multiply the exponents?

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