Question

(ii) If x + 2 is a factor of p(x), then k = [1] (a) 0 (b) 4 (c) 8 (d) 12​

Answer 1

Step-by-step explanation:

According to factor theorem, when f(x) is divided by (x−1),f(1)=0

f(x)=x

2

+2x−k

⟹f(1)=1

2

+2(1)−k=0

⟹3−k=0

⟹k=3