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23 February, 07:09

Find the value of

f (-9) and g (-2) if

f (x) = - 5x-2 and

g (x) = 3xsquared - 21x

I put squared cause I can't put a little two

+5
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  1. 23 February, 07:15
    0
    F (-9)

    f (x) = - 5x-2

    =-5 (-9) - 2

    =45 (-2)

    =90

    g (-2)

    g (x) = 3xsquared-21x

    =3 (-2squared) - 21 (-2)

    =3 (4) + 42

    =12+42

    =54
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