iven f(x) = 2×2 – 4x-3, find f (a + 3)

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iven f(x) = 2×2 – 4x-3, find f (a + 3)

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Ben Gia 1 year 2021-08-23T11:34:43+00:00 1 Answers 7 views 0

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    2021-08-23T11:36:41+00:00

    Greetings from Brasil…

    To solve this question, just replace X of function F(X) with A + 3

    F(X) = 2X² – 4X – 3

    F(A + 3) = 2 · (A + 3)² – 4 · (A + 3) – 3

          (A + 3)² = A² + 2 · A · 3 + 3²

    F(A + 3) = 2 · (A² + 6A + 9) – (4A + 12) – 3

    F(A + 3) = 2A² + 12A + 18 – 4A – 12 – 3

    F(A + 3) = 2A² + 8A + 3

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