SOLUTION: Help please. I have a test today and teache is busy can't help... 2sq.rt.3(3sq.rt.6-5 sq rt2. I do not understand how to solve.Please advise...I would really appreciate it!! M

Algebra ->  Radicals -> SOLUTION: Help please. I have a test today and teache is busy can't help... 2sq.rt.3(3sq.rt.6-5 sq rt2. I do not understand how to solve.Please advise...I would really appreciate it!! M      Log On


   

Question 85976: Help please. I have a test today and teache is busy can't help...
2sq.rt.3(3sq.rt.6-5 sq rt2. I do not understand how to solve.Please advise...I would really appreciate it!! Michelle
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Let's see if I have this right!
Evaluate:
highlight%28%282sqrt%283%29%29%2A%283sqrt%286%29%29%29-5sqrt%282%29 Perform the indicated multiplication.
highlight%28%282%2A3%29%28sqrt%283%29%2Asqrt%286%29%29%29+-+5sqrt%282%29 Simplify.
highlight%286sqrt%2818%29%29-5sqrt%282%29 Simplify the first radical.
highlight%286sqrt%289%2A2%29%29-5sqrt%282%29 Take out the sqrt%289%29=3
highlight%286%2A3sqrt%282%29%29-5sqrt%282%29
highlight%2818sqrt%282%29%29-5sqrt%282%29 Finally, factor out the sqrt%282%29 and perform the indicated subtraction.
sqrt%282%29%2818-5%29
13sqrt%282%29