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ihatealgebrasomuch
 3 years ago
√80 how do i do this?
ihatealgebrasomuch
 3 years ago
√80 how do i do this?

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dunn0053
 3 years ago
Best ResponseYou've already chosen the best response.0I assume you just need to factor it out so the best way to do it is figure out a multiple that's a perfect square and then it's just a multiple of that and the square root of the other number, such as squrt(125) is 5 * squrt(5) since 125 = 5 * 25.

ihatealgebrasomuch
 3 years ago
Best ResponseYou've already chosen the best response.0well the instructions say that i need to simplify and that all vaiables need to represent nonnegative numbers...

ihatealgebrasomuch
 3 years ago
Best ResponseYou've already chosen the best response.0so how do i take the negative away?

dunn0053
 3 years ago
Best ResponseYou've already chosen the best response.0Take out the multiple of sqrt(1) which is the imaginary unit, i as a multiple of your simplified answer, my friend.

ihatealgebrasomuch
 3 years ago
Best ResponseYou've already chosen the best response.0im so confused

phi
 3 years ago
Best ResponseYou've already chosen the best response.0If this is \[ \sqrt{80} \] then the best you can do is factor out a perfect square 80 = 16*5 or 4^2 * 5 so you get \[\sqrt{16*5} =4\sqrt{5} \]
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