Friday, February 17, 2012

Algebra Worksheet 06: Simplify Radicals Discussion Board

Algebra Worksheet 06: Simplify Radicals
http://erhsnyc.org/ourpages/auto/2012/2/16/54404287/Algebra%20Worksheet%2006_Simplify%20Radicals.pdf 

4 comments:

  1. These questions are forwarded from a school email:

    I'm having trouble with questions 1, 2, and 4 on the simplify radical expression with numbers and variables part of the worksheet

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    Replies
    1. Worksheet_06:

      (* sqrt() means the square root function)

      Exercise-

      5-1) sqrt(16a^3) = sqrt(16) sqrt(a^2) sqrt(a) = 4a sqrt(a)

      5-2) sqrt(9x^2y^5) = sqrt(9) sqrt(x^2) sqrt(y^4) sqrt(y) = 3xy^2 sqrt(y)

      5-4) sqrt(32x^2) / sqrt(2y^4) = sqrt(32x^2 / (2y^4)) = sqrt(16x^2/y^4) = sqrt(16) sqrt(x^2) / sqrt(y^4) = 4x / y^2

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  2. These questions are forwarded from a school email:

    I need help with problem 3 and 6 on the radicals sheet on the bottom.

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    Replies
    1. Worksheet_06:

      Exercise:

      5-3) sqrt((16x^3 4y^2)/(2xy^4))
      = sqrt(32x^2/y^2)
      = sqrt(16) sqrt(x^2) sqrt(2)/sqrt(y^2)
      = 4x sqrt(2)/y

      5-6) sqrt((4x^2 y^3)/(2x^2 y))
      = sqrt(2 y^2)
      = sqrt(2) sqrt(y^2)
      = sqrt(2) y

      Delete