SOLUTION: Find the real solutions, if any, of each system. {3m^2-2n^2= 9 {m^2-n^2= -1 The answers for this are (SquareRoot of 11, 2(Squareroot of 3)) (SquareRoot of 11, -2(Squarero

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Question 30021: Find the real solutions, if any, of each system.
{3m^2-2n^2= 9
{m^2-n^2= -1
The answers for this are
(SquareRoot of 11, 2(Squareroot of 3))
(SquareRoot of 11, -2(Squareroot of 3))
(-SquareRoot of 11, 2(Squareroot of 3))
(-SquareRoot of 11, -2(Squareroot of 3))
I just need to know how to go about solving this.
Thankyou

Answer by longjonsilver(2297)   (Show Source): You can put this solution on YOUR website!
and . Scale up the second one by multiplying it by 3.

--eqn1
--eqn2

Now subtract it from the first equation, leaving:


so or
--> or
--> or
--> or

when , we get -->
so, or

Similar result obtained for

jon.

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