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Asher Falcon TMUA Paper 1 · Q12

Paper 1Functions & graphs
ax5+2x5+bx3+4x2+5x+8ax^5+2x^5+bx^3+4x^2+5x+8

Given that the function above has a factor of (x2+2)(x^2+2), what is the value of 2a−b2a-b?

A−13-13
B1313
C132\frac{13}2
D−132-\frac{13}2
E52\frac52
F−52-\frac52
G44
H−4-4
IThe answer cannot be identified

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