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Posted by on Sunday, October 26, 2008 at 8:45pm.

Simplify: sqrt x^2-8x+16

I know that this can be factored out to sqrt (x-4)(x-4) what do i do next?

  • Math - , Sunday, October 26, 2008 at 8:46pm

    sqrt ( a*a) = a

  • Math - , Sunday, October 26, 2008 at 8:47pm

    is it x-4

  • Math - , Sunday, October 26, 2008 at 8:48pm

    Sure

  • Math - , Sunday, October 26, 2008 at 8:48pm

    Yes. Also, would 4-x work?

  • Math - , Sunday, October 26, 2008 at 8:49pm

    Okay I understand thank you both.

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