Homework Help: Radical exponents

Posted by Ava on Sunday, August 15, 2010 at 4:51pm.

Use rational exponents to write 4suare root 5 * 2 sqaure root 8

Please help.. I can't find the square root button

Rational exponents - drwls, Sunday, August 15, 2010 at 5:16pm
The subject is rational (fractional) exponents, not radical.

4sqrt5 * 2 sqrt8 = 8 sqrt40
= 8 sqrt(4*10) = 16 sqrt10

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