SOLUTION: I will use R to represent square root. please help me with these:) thank you I really appreciate it. 1.-3R3-2R8-2R8, I tried on my own and got -3R3-8R2. is that correct? 2.4 over

Algebra ->  Radicals -> SOLUTION: I will use R to represent square root. please help me with these:) thank you I really appreciate it. 1.-3R3-2R8-2R8, I tried on my own and got -3R3-8R2. is that correct? 2.4 over      Log On


   

Question 683212: I will use R to represent square root. please help me with these:) thank you I really appreciate it.
1.-3R3-2R8-2R8, I tried on my own and got -3R3-8R2. is that correct?
2.4 over R2+3
3.(1-4R5)(-3+2R5)
4.2 over 5+R3
Again, I cant thank you enough.
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
1.
-3sqrt%283%29+-+2sqrt%288%29+-+2sqrt%288%29
-3sqrt%283%29+-+4sqrt%288%29
-3sqrt%283%29+-+4%2A2sqrt%282%29
highlight_green%28-3sqrt%283%29+-+8sqrt%282%29%29
...
2.
4%2Fsqrt%282%29+%2B+3
%284%2Fsqrt%282%29%29%28sqrt%282%29%2Fsqrt%282%29%29+%2B+3
4sqrt%282%29%2F%28sqrt%282%29%2Asqrt%282%29%29+%2B+3
%284sqrt%282%29%2F2%29+%2B+3
highlight_green%282sqrt%282%29+%2B+3%29
...
3.

-3+%2B+2sqrt%285%29+%2B+12sqrt%285%29+-+8sqrt%285%29
highlight_green%28-3+%2B+6sqrt%285%29%29
...
4.
2%2F%285%2Bsqrt%283%29%29
%282%2F%285%2Bsqrt%283%29%29%29%28%285-sqrt%283%29%29%2F%285-sqrt%283%29%29%29
%282%285%2Bsqrt%283%29%29%29%2F%28%285%2Bsqrt%283%29%29%285-sqrt%283%29%29%29
...
denominator
%285%2Bsqrt%283%29%29%285-sqrt%283%29%29
25+%2B+5%28-sqrt%283%29%29+%2B+5sqrt%283%29+%2B+sqrt%283%29%28-sqrt%283%29%29
25+-+3
22
...
%2810%2B2sqrt%283%29%29%2F%2822%29
highlight_green%28%285%2Bsqrt%283%29%29%2F%2811%29%29
.....................
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