Edexcel IALMathematicsGeneral Applications2 Marks
A curve has equation y = x^2(x - 2) + 3. (a) Find dy/dx.
- (a)Find dy/dx.[2]
Mark scheme
Marking points from the official mark scheme. The mark or mark type is shown in brackets.
- M1 for expanding the expression to y = x^3 - 2x^2 + 3 and then differentiating at least two terms correctly.
- A1 for dy/dx = 3x^2 - 4x. (Must be fully simplified).
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