Which method should be used to solve the system? Explain your answer, including a description of the first step.
-$$\begin{array} { l }
x ^ { 2 } - 5 y ^ { 2 } = 100 \
- 4 x ^ { 2 } + 7 y ^ { 2 } = 81
\end{array}$$

Question

Which method should be used to solve the system? Explain your answer, including a description of the first step.
-$$\begin{array} { l } 
x ^ { 2 } - 5 y ^ { 2 } = 100 \
- 4 x ^ { 2 } + 7 y ^ { 2 } = 81
\end{array}$$

Quizplus · Accepted Answer

The Answer of Which method should be used to solve the system? Explain your answer, including a description of the first step.
-$$\begin{array} { l } 
x ^ { 2 } - 5 y ^ { 2 } = 100 \
- 4 x ^ { 2 } + 7 y ^ { 2 } = 81
\end{array}$$

Which Method Should Be Used to Solve the System? Explain x2−5y2=100−4x2+7y2=81\begin{array} { l } x ^ { 2 } - 5 y ^ { 2 } = 100 \\- 4 x ^ { 2 } + 7 y ^ { 2 } = 81\end{array}x2−5y2=100−4x2+7y2=81​

Which Method Should Be Used to Solve the System? Explain $\begin{array} { l } x ^ { 2 } - 5 y ^ { 2 } = 100 \\- 4 x ^ { 2 } + 7 y ^ { 2 } = 81\end{array}$