SOLUTION: how do i simplify the expression: 2square root of 42 times square root of 9

Algebra.Com
Question 307418: how do i simplify the expression: 2square root of 42 times square root of 9
Answer by rapaljer(4671)   (Show Source): You can put this solution on YOUR website!


The square root of 42 does NOT simplify, since no perfect squares divide evenly into it.

The only simplification that can be done is



That's it!!

Dr. Robert J. Rapalje

P.S. I have a GREAT website with a LOT of different help with square roots. Go to "www2.seminolestate.edu/rrapalje". To see my FREE video, look for the link that says "Rapalje Videos in Living Color" and choose "Basic Algebra". Select the topic "Radicals".

For written explanation, look at the link on my Homepage called "Basic, Intermediate and College Algebra: One Step at a Time." Choose "Basic Algebra", and look at Chapter 5 on Radicals. There are a LOT of problems solved in LIVING COLOR.

RELATED QUESTIONS

simplify 2square root90 - square root of... (answered by checkley77)
Simplify (Square root of 3x - 2Square root of... (answered by josgarithmetic)
multiply then simplify each radical expression square root of 7(2square root of... (answered by rapaljer)
how do i simplify the expression 2 times the square root of 5 plus 3 times the square... (answered by solver91311)
how do i simplify this? the square root of 2x times the sqaure root of... (answered by nerdybill,Alan3354,Mathtut)
simplify 5+2square root 6-3 square root... (answered by ankor@dixie-net.com)
Simplify. (1+2square root of... (answered by solver91311)
How do I simplify this radical expression. -3 Square root of 20 times square root of... (answered by orca)
how do i simplify the problem the square root of 60 times the square root of... (answered by ankor@dixie-net.com)