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anonymous

  • one year ago

Using the functions f(x) = 2x + 7, g(x) = x2 - 4, and h(x) = 5x. Find all of the following. Make sure your answer is in simplest form. c. f(g(x)) d. g(x)h(x) e. g(x) / f(x)

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  1. triciaal
    • one year ago
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    c use g(x) as your x in f(x) d g(x) multiplied by h(x) e g(x) divided by f(x)

  2. triciaal
    • one year ago
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    let me know where you get stuck

  3. anonymous
    • one year ago
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    c. 2(x^2 - 4) + 7 d.10x^2-20x e. im not sure how to do that? are the other 2 correct?

  4. triciaal
    • one year ago
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    c. need to simplify expand the parenthesis and group like terms

  5. triciaal
    • one year ago
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    |dw:1438912339436:dw|

  6. anonymous
    • one year ago
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    would c be 2x^3+7x^2-8x-28?

  7. anonymous
    • one year ago
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    d. 10x^3-20x ?

  8. anonymous
    • one year ago
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    or c would be 2x^3+7x^2-8x-21

  9. triciaal
    • one year ago
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    |dw:1438912488114:dw|

  10. triciaal
    • one year ago
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    for d you do not have 2x it is x^2 that 2 is a power means x multiplied by x

  11. anonymous
    • one year ago
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    d. 5x^3-20x ?

  12. triciaal
    • one year ago
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    |dw:1438912652000:dw|

  13. triciaal
    • one year ago
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    d yes

  14. anonymous
    • one year ago
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    would e just be (x2-4)/(2x+7) ? or can that be simplified

  15. triciaal
    • one year ago
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    I think we should leave it like

  16. anonymous
    • one year ago
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    thank you so much for your help

  17. triciaal
    • one year ago
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    you are welcome

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