Verify algebraically that x=5x=5x=5, y=−2y=-2y=−2 and x=11x=11x=11, y=−6y=-6y=−6 are solutions of the simultaneous equations
x2−3y2=13 x^2 - 3y^2 = 13 x2−3y2=13 2x+3y=4 2x + 3y = 4 2x+3y=4223 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.