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Factor the following polynomials
9-x^2
4x^2+81-36
4y2^+16y+16
x2^-25/x+5

  • Math -

    assistance needed

  • school work -

    i need assistance yes

  • school work -

    what do u need help on

  • school work -

    hints
    first one is a basic example of "difference of squares"

    second does not factor

    third is a perfect square, (2y+4)^2

    the last one, factor the top as a difference of squares, then cancel one of those factors with the denominator.

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