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anonymous
 4 years ago
help me please :)
1. Which expression is equivalent to radical 5+ radical 3 / radical 5  radical 3?
2. The fraction 11/a divided by 11/a^2 is equiv. to...
3. Solve for x: 3/x2+8/x^24=1
anonymous
 4 years ago
help me please :) 1. Which expression is equivalent to radical 5+ radical 3 / radical 5  radical 3? 2. The fraction 11/a divided by 11/a^2 is equiv. to... 3. Solve for x: 3/x2+8/x^24=1

This Question is Closed

tkhunny
 4 years ago
Best ResponseYou've already chosen the best response.1Please use parentheses to write what you intend. In your #1, you have written \(\sqrt{5} + \dfrac{\sqrt{3}}{\sqrt{5}}  \sqrt{3}\). I'm guessing this is not what you intended. In what I suspect you intended, multiply numerator and denominator separetely by \(\sqrt{5}+\sqrt{3}\) and see what magic happens, especially in the denominator.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1356738160323:dw

tkhunny
 4 years ago
Best ResponseYou've already chosen the best response.1Indeed. Did you do what I said? That will solve it.

tkhunny
 4 years ago
Best ResponseYou've already chosen the best response.1Good call. Show us what you get.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1356738348623:dw

tkhunny
 4 years ago
Best ResponseYou've already chosen the best response.1SO CLOSE!!!! That's \(8+2\sqrt{15}\) and then you have a common factor in numerator and denominator that can help to simplify a little more. Excellent work. You're getting it.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1356738746427:dw
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