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  • 2021 April(D05) Math Question 33

    Quadratic Equations

    - Factoring

    Factoring cubic polynomials
    Choice D

    $$ P(x)=x^2(x-10)+9(x-10) $$

    $$ =(x-10)(x^2+9)=0 $$

    $$ \therefore x=10 $$

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