Mathematics (AS & A Level) · Oct / Nov 2017 · Paper 22 · Question 4
9709
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The polynomials px and qx are defined by px = x3 + x2 + ax −15 and qx = 2x3 + x2 + bx + 21, where a and b are constants. It is given that x + 3 is a factor of px and also of qx .
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4(i)[3]
4(ii)[4]
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