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Spriteness

  • 4 years ago

Let f(x)=4x-8. Find (f * f)(7)

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  1. cathyangs
    • 4 years ago
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    is the * a multiplication sign or a circle-type sign?

  2. Spriteness
    • 4 years ago
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    A multiplication symbol :]

  3. cathyangs
    • 4 years ago
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    then it's: (4(7)-8)*(4(7)-8) which you know how to simplify, right?

  4. Spriteness
    • 4 years ago
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    I don't think so because I keep getting an answer of 400

  5. cathyangs
    • 4 years ago
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    that's right. :D

  6. Spriteness
    • 4 years ago
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    I don't think so because i put that it in and it said the answer was 72?

  7. cathyangs
    • 4 years ago
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    ...? @.@

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