Use the method of substitution to solve the system

9Y^2-4X^2=36

- 25Y^2-16X^2=400

Thanks

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- Jun 18th 2007, 10:10 PMAmyUse the method of substitution to solve the system
Use the method of substitution to solve the system

- 25Y^2-16X^2=400

Thanks - Jun 18th 2007, 10:24 PMJhevon
- Jun 18th 2007, 11:12 PMAmy
- Jun 18th 2007, 11:27 PMJhevon
okie dokie. so we use the same method as if it had real roots, no surprises here.

..................(1)

.......................(2)

Solving for from (2) we see that

Substitute for in equation (1), we get:

Now we simply substitue for in either of the original equations to find

You should get