The equation
x2+(n+1)x+(3−3n)=0x^2 + (n + 1)x + (3 - 3n) = 0x2+(n+1)x+(3−3n)=0
where n n\,n is a constant, has two distinct real roots.
Find the set of possible values for nnn, giving your answer in set notation.
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Markscheme
1.2.5 Discriminant of a quadratic Questions
8 exam-style questions on OCR (MEI) A Level Maths 1.2.5 Discriminant of a quadratic. Each one has a worked solution and a mark scheme showing where the marks go.