The polynomial P(x)=x3+ax2+bx−12P(x)=x^3+ax^2+bx-12P(x)=x3+ax2+bx−12 has factor x−3x-3x−3 and leaves remainder -20 when divided by x+1x+1x+1. Find a a\,a and bbb.
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Markscheme
1.1.11 Algebra and functions Questions
8 exam-style questions on CCEA A Level Maths 1.1.11 Algebra and functions. Each one has a worked solution and a mark scheme showing where the marks go.