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Algebra 2

posted by on .

For positive x and y, which expression is equivalent to (x^1/2-y^1/2)^2?

a. x-y
b. x+2sqrt(xy)+y
c. x-2sqrt(xy)+y

I need all of the steps to get to the right answer.
Thanks

  • Algebra 2 - ,

    (√x - √y)^2
    = x - 2√(xy) + y

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