Product of two quadratic polynomials

Product of two quadratic polynomials

Secondary 3
4 marks
TGM Original Questions

It is given that \(P(x)=2x^2-x+4\) and \(Q(x)=x^2+3\). Expand \(P(x)Q(x)\), state its degree, and find \(P(-1)Q(-1)\).[4]

Solution:

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Answer:\(2x^4-x^3+10x^2-3x+12\); degree \(4\); \(28\).

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