Question

if X + 3 is a factor
$3 {x}^{2} + kx + 6$
what is the value of k​

Answer 1

Answer:

no

Step-by-step explanation:

i am not give this question of answer

Answer 2

If (x+3) is a factor

then, x = -3

p(x) = 3x² + kx + 6

put x = -3

p(-3) = 3 × (-3)² + k(-3) + 6

For p(x) = 0

=> 3 × (-3)² + k(-3) + 6 = 0

=> 3 × 9 - 3k + 6 = 0

=> 27 - 3k + 6 = 0

=> 33 - 3k = 0

=> -3k = -33

=> k = 11