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Allisa [31]
3 years ago
15

Which of the following equations has an extraneous root?​

Mathematics
1 answer:
RSB [31]3 years ago
4 0

Answer:

2

Step-by-step explanation:

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Step-by-step explanation:

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\begin{gathered}\\ \sf\longmapsto 9(t-7)=u\end{gathered}

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