Let . If both and are factors of , what is the value of…

MATHEMATICS · Single correct · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

Let

p(x)=x^{3}+ax^{2}+bx+6

. If both

x-1

and

x-2

are factors of

p(x)

, what is the value of

a+b

? (a)

7

(b)

-6

(c)

-7

(d)

5

Related theory

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