Question

(i) Use the Remainder Theorem to factorise the following expression :
2x3 + x2 – 13x + 6.
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Answer 1

Step-by-step explanation:

f(x) = 2x3 + x2 − 13x + 6

Factors of constant term 6 are ±1, ± 2, ± 3, ± 6.

Putting x = 2, we have:

f(2) = 2(2)3 + 22 − 13 (2) + 6 = 16 + 4 − 26 + 6 = 0

Hence (x − 2) is a factor of f(x).

Answer 2

Answer:

(2x-1)(x+3)(x-2)

Step-by-step explanation:

hope it helps you