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factor polynomials - Greece Juniors 1988 p3

Source:

September 13, 2024
algebrapolynomial

Problem Statement

Consider the polynomials P(x)=x43x3+x3,Q(x)=x22x3R(x)=x25x+aP(x)=x^4-3x^3+x-3,\,\,\,\,Q(x)=x^2-2x-3 \,\,\,\, R(x)=-x^2-5x+a i) Find aa \in R such that polynomial R(x)R(x) is dividide by x2x-2 ii) Factor polynomials P(x),Q(x)P(x),Q(x) iii) Prove that exrpession x2+x+P(x)Q(x)+15-x^2+x+\frac{P(x)}{Q(x)}+15 is a perfect square.