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algebra

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given that 6x^3+5a-12a leaves a remainder of -4 when divided by (x-a). what will be the possible value of a ?

  • algebra -

    Assuming a typo, we have
    f(a) = 6a^3+5a^2-12a = -4
    6a^3+5a^2-12a+4 = 0
    (a+2)(2a-1)(3a-2) = 0
    . . .

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