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3 August, 19:29

If f (x) = 5X2-2 and g (x) = x+1, find (f - g) (x).

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  1. 3 August, 19:33
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    5x² - x - 3

    Step-by-step explanation:

    note that (f - g) (x) = f (x) - g (x)

    f (x) - g (x)

    = 5x² - 2 - (x + 1) ← distribute

    = 5x² - 2 - x - 1 ← collect like terms

    = 5x² - x - 3
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