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Find the value of a polynomial …

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Find the value of a polynomial 3xcube -4xsqare+7x-5 at x =3 and also when x=-3

    • Posted by Laya R 4 years, 2 months ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Krishnam Sarda 4 years, 2 months ago

    x=3, 3×x^3 - 4×x^2 + 7×x - 5 3×3^3 - 4×3^2 + 7×3 - 5 81 - 36 + 21 - 5 102 - 41 61. x= -3, 3×(-3)^3 - 4×(-3)^2 +7×(-3) - 5 3×(-27) - 4×9 + (-21) - 5 -81 - 36 - 21 - 5 -143

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