A rectangle has width x x\,x cm and length (x+3)(x+3)(x+3) cm, where x>0x>0x>0. Its area is less than 40 cm2^22.
Find the set of possible values of xxx.
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Markscheme
1.2.10 Quadratic inequalities Questions
8 exam-style questions on OCR (MEI) A Level Maths 1.2.10 Quadratic inequalities. Each one has a worked solution and a mark scheme showing where the marks go.