Anonymous
Anonymous asked in Science & MathematicsMathematics · 1 decade ago

Find R(11)?

P(X)=-5X^2+4x^3-12 and R(x)= -2x^3-7x+14

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  • Mr. Q
    Lv 5
    1 decade ago
    Favorite Answer

    R(x) = -2x³ - 7x + 14

    R(11) = -2(11)³ - 7(11) + 14

    R(11) = -2(1331) - 77 + 14

    R(11) = -2662 - 77 + 14

    R(11) = -2725

  • 1 decade ago

    R(x)= -2x^3-7x+14

    R(11)= -2*(11)^3-7*11+14= -2725.

  • 1 decade ago

    11^3 = 1331 so R(11) = -2662 - 77 + 14 = -2725

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