SOLUTION: Please can someone help? I have no idea where to start, and please show me how u got the answers, thank you. 1. sqrt x^9z^2/18y^5 2. 2 sqrt x-3/sqrt x+5 3

Algebra ->  Radicals -> SOLUTION: Please can someone help? I have no idea where to start, and please show me how u got the answers, thank you. 1. sqrt x^9z^2/18y^5 2. 2 sqrt x-3/sqrt x+5 3      Log On


   

Question 471110: Please can someone help? I have no idea where to start, and please show me how u got the answers, thank you.
1. sqrt x^9z^2/18y^5

2. 2 sqrt x-3/sqrt x+5
3. (2^3 sqrt 40+^3 sqrt 48)(6^3 sqrt 4-^3 sqrt 32)

4. (x+4)^3
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
1. sqrt x^9z^2/18y^5
What terms are under the radical?
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2. 2 sqrt x-3/sqrt x+5
2sqrt%28x-3%29%2Fsqrt%28x%2B5%29 I think you mean
You didn't say what you want to do, I'll guess simplify.
= 2sqrt%28%28x-3%29%2A%28x%2B5%29%29%2F%28x%2B5%29
= 2sqrt%28x%5E2+%2B+2x+-+15%29%29%2F%28x%2B5%29
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3. (2^3 sqrt 40+^3 sqrt 48)(6^3 sqrt 4-^3 sqrt 32)
I don't know what 40+^3 means, or 4-^3
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4. (x+4)^3
= x%5E3+%2B+12x%5E2+%2B+48x+%2B+64