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zaynahf

  • 3 years ago

Let f(x) = x^2 + 1 and g(x) = 3x +5 What is (fg)(x)

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  1. AravindG
    • 3 years ago
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    fg(x) is f(x)g(x)

  2. AravindG
    • 3 years ago
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    use that property to get to result

  3. zaynahf
    • 3 years ago
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    So use foil?

  4. AravindG
    • 3 years ago
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    just multiply the functions :)

  5. zaynahf
    • 3 years ago
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    I got 3x^3 + 3x + 5x^2 + 5

  6. AravindG
    • 3 years ago
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    you are right :)

  7. zaynahf
    • 3 years ago
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    Thank you!

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