# c1-algebra-and-functions.pdf - Edexcel GCE Core Mathematics...

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Edexcel GCECore Mathematics C1Advanced SubsidiaryAlgebra and FunctionsMaterials required for examinationItems included with question papersMathematical Formulae (Pink or Green)NilCalculators may NOT be used in this examination.Advice to CandidatesYou must ensure that your answers to parts of questions are clearly labelled.You must show sufficient working to make your methods clear to the Examiner.Answers without working may not gain full credit.
1.Find the set of values ofxfor which(a) 4x– 3 > 7 –x(2)(b) 2x2– 5x– 12 < 0(4)(c)both4x– 3 > 7 –xand2x2– 5x– 12 < 0(1)2.The equationx2+ 3px+p= 0, wherepis a non-zero constant, has equal roots.Find the value ofp.(4)3.Factorise completelyx3– 9x.(3)4.(a)By eliminatingyfrom the equations,4-=xy,822=-xyxshow that0842=-+xx.(2)(b)Hence, or otherwise, solve the simultaneous equations,4-=xy,822=-xyxgiving your answers in the forma±b3, whereaandbare integers.

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