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19 January, 08:52

If f (x) = 4 - x2 and g (x) = 6x, which expression is equivalent to (9-1 (3) ?

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  1. 19 January, 10:09
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    (g - f) (3) = 23

    Step-by-step explanation:

    (g-f) (x) = g (x) - f (x)

    =6x - (4-X (2))

    =x (2) + 6x-4

    to evaluate (g-f) (#) substitute x=3 into (g-f) (x)

    (g-f) = (9) + (6 x 3) - 4=23
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