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17 June, 23:24

Find a cubic function with the given zeros.

Square root of seven., - Square root of seven., - 4

f (x) = x^3 + 4x^2 + 7x - 28

f (x) = x^3 + 4x^2 - 7x - 28

f (x) = x^3 - 4x^2 - 7x - 28

f (x) = x^3 + 4x^2 - 7x + 28

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Answers (1)
  1. 18 June, 00:27
    0
    An eqution with roots r1, r2, r3 is factored form as

    (x-r1) (x-r2) (x-r3)

    roots are √7, - √7, and - 4

    (x-√7) (x+√7) (x+4)

    multiply

    (x^2-7) (x+4)

    x^3+4x^2-7x-28

    2nd option si right naswer
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