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posted by on .

use the distributive property to multiply then if possible simplify the resulting expression

√3 (√3- √21)

  • math - ,

    to multiply, just multiply the radicands (terms inside the radical sign):
    sqrt(3*3) - sqrt(3*21)
    sqrt(9) - sqrt((3^2)*7)
    3 - 3*sqrt(7)

    hope this helps~ :)

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