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Which Method Should Be Used to Solve the System? Explain x2−y2=4x+8y=9\begin{array} { l } x ^ { 2 } - y ^ { 2 } = 4 \\x + 8 y = 9\end{array}

Question 34

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Which method should be used to solve the system? Explain your answer, including a description of the first step.
- x2−y2=4x+8y=9\begin{array} { l } x ^ { 2 } - y ^ { 2 } = 4 \\x + 8 y = 9\end{array}

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Substitution should be used, b...

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