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Factor the following polynomials. (1 point each)

9. 3x2 – 12

10. 5x3y + 35x2y + 45xy

  • math -

    3x^2 - 12
    = 3(x^2 - 4)
    continue, I see a difference of squares

    5x^3 y + 35x^2 y + 45xy
    I see a common factor os 5xy
    = 5xy(x^2 + 7x + 9)

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