Question

(x²
+ kx + 12) is (x + 3),
Ex 2. If one of the factors of
find the value of k.
(1) 8
(2) 7
(3) 6
(4) 5​

Answer 1

Answer:hii

Step-by-step explanation:

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Answer 2

p(x)=x^2 - k x+12

x-3 is a factor of p(x)

x-3=0

x=3

p(3)=0

p(3)=3^2-3 k+12

9-3 k+ 12+0

21-3 k

21=3 k

k=7

• Hope this answer helps you:)