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DeadShot

  • 3 years ago

What are the zeros of the polynomial function: f(x) = (x - 4)(2x + 1)(x + 7)?

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  1. harsimran_hs4
    • 3 years ago
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    you have already done it yourself (x - 4)(2x + 1)(x + 7) = 0 for what value of x?

  2. ParthKohli
    • 3 years ago
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    Either \(x - 4 = 0 \quad \Rightarrow \quad x = 0 + 4 \). Or \(2x + 1 = 0 \quad \Rightarrow \quad \cdots\)

  3. harsimran_hs4
    • 3 years ago
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    put each factor separately equal to 0 and try finding the answer just as @ParthKohli has done

  4. DeadShot
    • 3 years ago
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    \[4, -\frac{ 1 }{ 2 }, and -7\] right?

  5. ParthKohli
    • 3 years ago
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    Yes.

  6. DeadShot
    • 3 years ago
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    Thanks for the help!

  7. ParthKohli
    • 3 years ago
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    No problem!

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