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16 December, 13:15

If f (x) = x2 + 2x - 6 and g (x) = 3x2 - 5x - 7, find f (x) - g (x).

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  1. 16 December, 13:36
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    - 2x² + 7x + 1

    Step-by-step explanation:

    f (x) - g (x)

    = x² + 2x - 6 - (3x² - 5x - 7) ← distribute parenthesis by - 1

    = x² + 2x - 6 - 3x² + 5x + 7 ← collect like terms

    = - 2x² + 7x + 1
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