A curve has equation \(x^2y+xy^2+54=0\). Without using a calculator, find the coordinates of the point on the curve at which the gradient is \(-1\), showing that there is only one such point.[6]
680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs a course plan.
Create a free account to practise similar questions.
Need help? Join our JC Math tuition classes.
Learn more