Verify algebraically that the solutions of the simultaneous equations
2x2−y2=68 2x^2 - y^2 = 68 2x2−y2=68 3x+2y=6 3x + 2y = 6 3x+2y=6are (x,y)=(14,−18)(x,y)=(14,-18)(x,y)=(14,−18) and (x,y)=(22,−30)(x,y)=(22,-30)(x,y)=(22,−30).
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.