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anonymous

  • one year ago

Jerry skipped some steps and made and error in his solution. Explain the error in Jerry's solution below. Give the correct solution(s). x\left( {x + 6} \right) = - 5 x = - 5 \begin{array}{l}x + 6 = - 5\\x = - 11\end{array}

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  1. misty1212
    • one year ago
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    \[x\left( {x + 6} \right) = - 5 \]

  2. misty1212
    • one year ago
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    just trying to figure out what you wrote

  3. misty1212
    • one year ago
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    \[x(x+6)=-5\\ x=-5\\ x+6=-5, x=-11\] something like that?

  4. anonymous
    • one year ago
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    yes

  5. misty1212
    • one year ago
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    the error is that if \(x(x+6)=-5\) then it does not follow that one of those factors is \(-5\) we can only use that if it is set equal to zero i.e. if the product of two factors are zero, one of the factors must be zero

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