Solve algebraically the simultaneous equations
2x2−y2=56 2x^2-y^2=56 2x2−y2=56 3x+2y=6 3x+2y=6 3x+2y=6Hence, find the values of x2+y2x^2+y^2x2+y2.
223 exam-style questions on Edexcel GCSE Maths Quadratic Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.