The simultaneous equations
x2+y2=17 x^2 + y^2 = 17 x2+y2=17 y=x−3 y = x - 3 y=x−3have solutions x=4,y=1x = 4, y = 1x=4,y=1 and x=−1,y=−4x = -1, y = -4x=−1,y=−4. Verify this.
223 exam-style questions on Eduqas GCSE Maths Quadratic Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.