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31 December, 11:28

Which function has real zeros at x = 3 and x = 7? f (x) = x2 4x - 21 f (x) = x2 - 4x - 21 f (x) = x2 - 10x 21 f (x) = x2 - 10x - 21

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  1. 31 December, 11:54
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    Hello,

    f (x) = (x-3) (x-7) = x²-10x+21

    Answer C
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