Matematika 12

Greg Attwood, Jack Barraclough, Ian Bettison, Alistair Macpherson, Bronwen Moran, Su Nicholson, Diane Oliver, Joe Petran, Keith Bledger, Harry Smith, Geoff Staley, Robert Ward-Penny dhe Dave Wilkins

Pyetja

Zgjidh sistemet e ekuacioneve.

  1. {2x+2y=7x24y2=8\begin{cases} 2x+2y=7 \\ x^2-4y^2=8 \end{cases}
  2. {x+y=9x23xy+2y2=0\begin{cases} x+y=9 \\ x^2-3xy+2y^2=0 \end{cases}
  3. {5y4x=1x2y2+5x=41\begin{cases} 5y-4x=1 \\ x^2-y^2+5x=41 \end{cases}