Posted by **Tim** on Saturday, March 15, 2008 at 1:11pm.

My problem is:

4 sqrt 81

I know the answer is 3, but I do not know how they got it.

## Answer This Question

## Related Questions

- math,algebra,help - Directions are simplify by combining like terms. x radiacal ...
- math, correction,plz - can someone correct these for me plz.... Problem#36 Use ...
- math,correction plz - can someone correct my math...thanks... Perform the ...
- math,correction - Simplify by combining like terms. Problem #32 radical (63) - 2...
- radical equation - 2^x+20=15+3^x A)1 B)16 C)-5 D)25 I chose c but i got it wrong...
- math,correction - problem #50 Perform the indicated division. Rationalize the ...
- algebra - by simplifying the expression 5 radical ab * 3 radical a^B^ what is ...
- algebra 2 - Science and medicine. Find the time required for an object to fall ...
- math,algebra,correction - Science and medicine. Find the time required for an ...
- algebra - 1.what is the simplest form of the producy sqrt 50x^7y^7 * sqrt 6 xy^4...

More Related Questions