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27 September, 05:13

Select the approximate values of x that are solutions to f (x) = 0, where f (x) = - 9x^2 + 7x + 2

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  1. 27 September, 05:34
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    F (x) = - 9x^2 + 7x + 2

    Factorising we get:

    f (x) = (x + 1) (-9x + 2)

    The solutions are x = - 1 and 2/9ths
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