anonymous
  • anonymous
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Mathematics
katieb
  • katieb
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anonymous
  • anonymous
The bottom of a fraction is called the denominator. Numbers like 2 and 3 are rational. But many roots, such as √2 and √3, are irrational. So you need to have a rational numeber instad of the root Multiply top and bottom by the square root of 8x, on the denom: √8x × √8x = 8x: On num: √8x × 1 = √8x
anonymous
  • anonymous
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anonymous
  • anonymous
multiply both top and bottom by the conjugate of the denominator. here you can find all the details: https://www.mathsisfun.com/algebra/rationalize-denominator.html

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