Quadratic simultaneous equations help?
Hi, can somebody please help me with the following question:
Solve the simultaneous equations:
x + y = 9
x^2 - 3xy + 2y^2 = 0
This is my second attempt but I think I'm getting the answer wrong because I'm stuck at how I would substitute in the part. The was supposed to be :
This what I did on my first attempt ( hopefully you can still read it ):
Thanks
Solve the simultaneous equations:
x + y = 9
x^2 - 3xy + 2y^2 = 0
This is my second attempt but I think I'm getting the answer wrong because I'm stuck at how I would substitute in the part. The was supposed to be :
This what I did on my first attempt ( hopefully you can still read it ):
Thanks
Original post by elishx__h
Hi, can somebody please help me with the following question:
Solve the simultaneous equations:
x + y = 9
x^2 - 3xy + 2y^2 = 0
Solve the simultaneous equations:
x + y = 9
x^2 - 3xy + 2y^2 = 0
This is my second attempt but I think I'm getting the answer wrong because I'm stuck at how I would substitute in the part. The was supposed to be :
This what I did on my first attempt ( hopefully you can still read it ):
Thanks
write it as 3y(9-y)
it will be easier ...
Original post by TeeEm
write it as 3y(9-y)
it will be easier ...
it will be easier ...
thank you
I'll try that.Quick Reply
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